@Splinter : Go
here then click "browse".
Find your head texture that you saved. Click upload.
Then go ingame to multiplayer and it should load (sometimes takes a while)
If you are in free play type /dl splinter3 in your case and type /lp 0 splinter 3.
@snake: in gimp go to filter>Animation>globe.
Set the frames then you should have a spinning globe of your head texture.
Next is to preview, save your spinning globe as a animated gif and go
here.
Upload your texture, then copy the imagelink. Then when you want to sell it just click insert image and paste the link there and click "ok". And last, when someone buys your texture just send the the flat image of your head texture.
Hope it helps ~Nerd