According to www.duckbrand.com, "Ducktivities are what we call fashion, crafts or anything else made using Duck Tape®." Go there for more tips and ideas.
It also comes in handy on a camping or hiking trip. ( Uses for Duct Tape While Camping - ehow.com ) Maybe you could come up with some creative duct-tape ideas for geocaching swag, containers, etc.
You might have seen those cooky MythBusters tv shows on the Discovery Channel, where they make a duct-tape bridge or a boat made almost entirely out of duct-tape. No doubt this is strong stuff that can be used in a wide variety of ways!
Tailgate net for your pick-up truck. Really? Wow!
Duct Tape Wallet.
Disney Family Fun (www.familyfun.go.com) has come up with some Duct Tape Hiking Gear
Camouflage any Geocaching-Container with Camo Tape!(found @ www.findyourgeocache.com) We've come across a couple of these camouflaged geocache containers and boy are they tough to find, especially the smaller ones!
Email us some of your craft ideas at email@example.com