Hi there
I've just gone for an animal theme...
I'm not sure if you've seen the Kidsline cot sets? We got the Malawi set and got the matching lamp, window valance and cot mobile, it really is lovely.
I also got some re-usable stickers off of ebay, they're just pictures of different animals done in a cartoon type design of girrafes, tigers, elephants etc.
Good luck with your decorating, it really is a hard decision to make!!