Dry Erase Tape - pretty pricey but interesting
Dry Erase magnet strips (this one comes on a roll, so you can cut it to the desired length)
Lots of decorative masking tapes (this is a link to the one below)
More packing tape (lots of designs available)
And, of course, all kinds of duct tape
Or this, used here to decorate a gift box
If you're going to make larger items out of duct tape, you'll want to make duct tape fabric (apparently--I haven't tried this yet), so here's a video to show you how to do that:
There are tons of videos that demonstrate various types of duct tape wallets (including bifold, tri-fold, ones with secret pockets and/or a clear pocket), so here's just one of them:
I could have gone on and on. There are so many videos and blog entries on what to do with fun tapes, so this is just a start.
Have you used decorative tape for any crafts?
Have a great day!