So yeah, title says it all. How do I make one of them? Say, if I have a picture (a flat one) is there a way to make it a spinning sphere?

this will solve the matter,close the thread.
click link for full tutorial:http://forum.toribash.com/showthread.php?t=16891

Oh garry, simple for all your gimp users,

1.Open gimp witht he flat of the head you want to global

2. goto Filters > Animation > Spinning Globe

3. Viola you've got your gif ready for a post

OK, this helps. But how do u upload it to forums?

upload it to a picture hosting/uploading website like tinypic.com and use the link to the raw image to post it on your forum post

Same way one would upload a Replay just choose the .GIF file and it will load i think :/

I strongly suggest Imageshack.us

Also, a little tips to get the highest quality animation.

When choosing the amount of frames in Gimp>Spinning Globe, set the "Index to n colors" to 0. This will make it HQ.

And set the frames to 70+ to get a slow and fluent animation.

i thing you can search it in google