I have gathered together some affordable wristlets for you to spend your money on:

The cute ones: Owl and wing wristlets at Wingfish. $18 for the owl and $10 for the wing.

The secondhand ones: They’re of course on Ebay as well. Hot red starts at $6 and leather starts at $10.

So over to the fun ones: The first is avaliable at Fred Flare for $9. It’s actually a wallet, but might be possible to carry as a wristlet. Another wallet that may work as a wristlet is the apple from Naughty Secretary Club at $12.

More of the classy and expencive kind: The good news is that they’re on sale. Pink is $34 and lime is $37. Both on Zappos.
And at last the ones you can make yourself: The denim & lace is found here with tutorial, and you will find a tutorial for something like the second one here.