all the credit for this has to go to minouette, because otherwise i wouldn't have made this. she made a cactus pin cushion, and mentioned she had thought about making a hedgehog. i think hedgehogs are the coolest, so i went ahead and made one!
this is him wandering around my sewing machine:


he's a little long and thin (not as round and fat as i had intended) but i think he's still very cute.
EDIT!:
ok, as requested, here is a little tutorial, ghetto as it is, i think it'll be okay...
first, you want to cut up some felt. i just made it up as i went along, but i wish lancelot (as named by my friend) was more round now, so i guess this is the part that you would want to modify. make these pieces wider and longer if you want him fat. so cut pieces (they'll be jagged on both sides because you cut from the same piece) and sew those bitches together. i just used black on dark brown, and you can't see stitches.

next up is the face. you want to take a fat triangle, and sew it together to make a cone. just fold it in half, sew up one side, and flip it right side out. then you can add bead eyes and a felt nose or whatever tickles your hedgehog's fancy. lancelot has a tiny, hedgey smile.

after you have the face-cone, you want to sew it to the body. just overlap one end of the spikes on top of the cone and sew around it. it should cover a little over one half of the circumfrence of the bottom of the cone (because the underbelly needs room to attach too)
finally, you want to cut out a felt oval, same color as the face. this is the underbelly. sew some felt feet on there. then, you just want to attach it to the body parts you've already done. sew it up like the red lines suggest below. but leave an opening to fill up the hedgehog with stuffing. i used some left over pillow stuffing... but the pins sort of slide out easily. i'd reccommend some foam pieces, some more felt, or any fabric that pins may want to stay stuck in.

yep. that's about it. hope nothing's confusing.
let me know how they turn out!!