- Draw/write on plain mugs with Sharpies, then bake at 350 for 30 minutes. You could just find/come up with some cute quotes and scribble them on.
- Write words (e.g. cute things like 'love' or more practical things like 'sugar') on empty jars with a hot glue gun (or some other puffy glue that will stick) then paint the entire jar. They look fantastic!
http://www.pinterest.com/pin/60869032433376674/
- Jars filled with sand and shells.
- Stress/juggling balls (if you want to do the latter, you could sell them in packs of 3 with instructions!) made out of sand or rice and 3 different colored balloons.
- Decorate plain headbands and hair clips with buttons, fake flowers, bows, etc.
- Cut out sections of old used Christmas cards to make gift tags. They'd probably sell better in packs.
- Glue decorative buttons onto paper clips (then stick a bit of felt on the back of the button) to make bookmarks.
- Bookmarks made of ribbon with ribbon clamps on each end, then attach charms, beads, earrings, etc. to one clamp with a jump ring.
- Stick pretty paper, pictures, photos, etc. on plain ceramic tiles with Mod Podge, do a few coats of the Mod Podge on top then spray with a sealant. Finally, stick some bits of felt or foam on the bottom of the tiles and you have some cute coasters!
- Homemade cards with things like pretty papers, buttons, fake flowers, etc.
- Bookmarks made out of those thick popsicle sticks with cute wooden animal shapes or letters on top. Then, on the day, have someone with neat/cute handwriting write the person's name on the stick with a Sharpie.
- Another one for on the day: paint people's names on plain baubles with puff paint (and glitter, or glitter puff paint). They'll have to come back to collect them after they've dried.