This is pretty easy mod:

[code]

<ImprovementTypes>
<DataChecksum NoParse="1">
        <Ignore>DisplayName</Ignore>
        <Translate>DisplayName</Translate>
</DataChecksum>

     <!-- ************ -->
    <!-- ** Kennel ** -->
    <!-- ************ -->
    <ImprovementType InternalName="K_Kennel">
      <!-- Improvement Data -->
        <DisplayName>Kennel</DisplayName>
        <Description>Kennels can be built on Wild Wargs to provide 1 Warg every 4 turns.</Description>
        <TileDesign>F_Kennel__02</TileDesign>
        <ConstructionTileDesign>F_Kennel_Build_02</ConstructionTileDesign>
        <SupportedTerrainType>Land</SupportedTerrainType>
        <SupportedTerrainType>City</SupportedTerrainType>
        <DrawnIcon>Gfx/TacticalIcons/E_Kennel1.png</DrawnIcon>
        <DrawnIconConstruction>Gfx/TacticalIcons/E_Kennel1_C.png</DrawnIconConstruction>
        <Thumbnail>Gfx/Medallions/F_Kennel_02_Thumb.png</Thumbnail>
    <Medallions InternalName="">
      <All>Gfx/Medallions/F_Kennel_02_Thumb.png</All>
      <Border_All></Border_All>
    </Medallions>
    <!-- Prerequisites -->
        <RequiresCity>True</RequiresCity>
        <RequiresResource>True</RequiresResource>
        <SupportedResourceType>Wargs</SupportedResourceType>

    <Prereq>
      <Type>Allegiance</Type>
      <Attribute>Kingdom</Attribute>
    </Prereq>

        <!-- Cost -->
        <LaborToBuild>1.0</LaborToBuild>

        <GameModifier>
            <ModType>ConstructionResourceCost</ModType>
            <Attribute>Gold</Attribute>
            <Value>-50</Value>
            <PerTurn>0</PerTurn>
        </GameModifier>

    <GameModifier>
      <ModType>Resource</ModType>
      <Attribute>Wargs</Attribute>
      <Value>0.25</Value>
      <PerTurn>1</PerTurn>
    </GameModifier>

    <GameModifier>
            <ModType>City</ModType>
            <Attribute>Unlock</Attribute>
            <Provides>Mounted Units</Provides>
        </GameModifier>

        <!-- Base Improvement Modifiers -->
    <AIData AIPersonality="AI_General">
      <AITag>War</AITag>
    </AIData>
    </ImprovementType>

    <!-- ************ -->
    <!-- ** Stable ** -->
    <!-- ************ -->
    <ImprovementType InternalName="E_Stables">
        <!-- Improvement Data -->
        <DisplayName>Stables</DisplayName>
        <Description>Stables can be built on Wild Horses to provide 1 Horse every 4 turns.</Description>
    <TileDesign>K_Stables_01</TileDesign>
        <ConstructionTileDesign>K_Stables_Build_01</ConstructionTileDesign>
        <SupportedTerrainType>Land</SupportedTerrainType>
        <SupportedTerrainType>City</SupportedTerrainType>
        <DrawnIcon>Gfx/TacticalIcons/K_Stable1.png</DrawnIcon>
        <DrawnIconConstruction>Gfx/TacticalIcons/K_Stable1_C.png</DrawnIconConstruction>
        <Thumbnail>Gfx/Medallions/Resource_Thumb.png</Thumbnail>
    <Medallions InternalName="">
      <All>Gfx/Medallions/Resource_Thumb.png</All>
      <Border_All></Border_All>
    </Medallions>
        <!-- Prerequisites -->
        <RequiresCity>False</RequiresCity>
        <RequiresResource>True</RequiresResource>
        <SupportedResourceType>Horses</SupportedResourceType>
      <!-- Cost -->
        <LaborToBuild>5.0</LaborToBuild>
        <GameModifier>
            <ModType>ConstructionResourceCost</ModType>
            <Attribute>Gold</Attribute>
            <Value>-50</Value>
            <PerTurn>0</PerTurn>
        </GameModifier>

    <!-- Production -->
    <GameModifier>
      <ModType>Resource</ModType>
      <Attribute>Horses</Attribute>
      <Value>0.25</Value>
      <PerTurn>1</PerTurn>
    </GameModifier>

    <Prereq>
      <Type>Allegiance</Type>
      <Attribute>Empire</Attribute>
    </Prereq>
    <AIData AIPersonality="AI_General">
      <AITag>Farming</AITag>
    </AIData>
        <!-- Base Improvement Modifiers -->

    </ImprovementType>

</ImprovementTypes>

[/code]

Just copy the stuff between the code tags into Notepad, save it as a *.xml file (name shouldn't matter), then put that file into My Documents/My Games/Elemental/Units/ folder.

Haven't actually tested it, but it should work. Just ripped the XML definitions out of the data files (improvements are in the folder 'Core Improvements, separated by Allegiance/Type), gave them a new Internal Name, and changed the required Allegiance...

Awesome, thanks for the code and instructions!

Yep, and you could give it a different look while it is being built too, by making a second tile and assigning that to the property right below <TileDesign>

Bah that's not where Ogre Villages and such are, gotta keep looking for that. I'll try a keyword search.

Thanks thehandofzarquon, now i just have to find a warg tile in my game to see if my custom Kingdom Kennel works (i'll share it if it works ^^)

Just for people interested in this mod, it probably won't work with an existent save, you must create a new game.

I'm still coming up with an issue with this in the sense that I still cannot build the improvements, as it still says that my faction (kingdom) cannot use that resource.

does anybody know how to remove the faction restrictions on resources so that you can actually build the created improvements?

I'm not entirely sure what the issue is here to be perfectly honest.

I'm not sure if it's just that I haven't connected the improvements to the factions correctly (the pre-reqs are already set correctly, as the kingdoms version of the kennels faction prequisite is set for kingdom (as I don't want each faction having 2 kinds of the same improvement) or if the actual resource itself is set to only be usuable by one faction and thats stopping the build button becoming available.

from reading the coreresouce.xml horses are already tradeable via caravan.

a good way to debug is to create an ability that adds resources to your starting location (you can use the talent "naturalist" from Sovereigntalents.XML as a template) that starts you off with horses and/or Wargs