Birthday Treasure Box

I have 24 nieces and nephews, can you believe that? Shopping for individual and thoughtful birthday gifts could be really time consuming, so this year I decided to fill a wooden "treasure box" with inexpensive small gifts and treats and let the younger kids (up to about age 10 or 11) choose five things out of the box for their birthday. The older kids get gift cards they can use to buy something they'd like or put towards a bigger item. So far the kids seem to really enjoy this so maybe it will become a tradition.

Here are some of the things I have in the box, have had in the box, or think would be fun to put in the box:

$1 coins * small notebooks * unique pens and pencils
hair barrettes and clips * candy and gum * bubbles
matchbox cars * foreign coins * stickers
mini puzzles * fingernail polish * disposable cameras
$2 bills * art supplies * magnets
lipgloss * sidewalk chalk * yo-yos
cool rocks and shells * small travel games or cards
costume jewelry * glow sticks * small flashlights
post-it notes * bookmarks * garden seeds
pencil toppers * patterned or colored shoelaces
magic towels (the ones you soak in water to expand)
Pez machines * shark teeth * small books
pocket mirrors * finger puppets * rubber stamps
fun band-aids * Japanese erasers * silly putty

I would love to add more handmade items (I need to search Etsy to see if I can find items around this price range). If you have ideas to add, please comment!