Washi tape tea lights. Simple and inexpensive, these could be good little gifts at a number of occasions, stocking stuffers, baby shower 'thank yous', wedding favours, and addition to another gift on a birthday... et cetera.
Donate a sock at a Harry Potter birthday party! See more party ideas at CatchMyParty.com! This would be great for my daughter's party, then the socks could be donated to some place needing them for Christmas after her party.