How simple , how long should it take?
I believe we did some super simple Tandy leather kit..
they have dreamcatchers, comb sheaths, flashlight holders, pouches...
http://www.tandyleatherfactory.com/home/department/Kits/Kits.aspx
how about a woggle cut from sheet, hole punched, snap installed.
let them do as much as or as little as they can according to ability.
tooling, requires a hammer and some simple tooling punches from scrap steel or small pipe.
One craft i did at cub camp was a sort of a tabletop change/catchall box
-Wooden bases precut, presanded, preoil finished 3/4 thick, 4 x 6" or whatever
-nails put in a 1/2 inch intervals, sticking up to form pins, drinking straws aere cut to form a template that fit over the nail to set depth- cubs did with leader help.
-cubs did a simple weave with yarn, string, para cord...in out in out around the posts..
and it built up little walls.
Different colors allow creative individuality...
I like the turks head woggle idea
Gods eye - Odens eye
too simple ?..it's not at all useful, but then again that never stopped dream catchers either....
http://crafts.kaboose.com/gods-eyes.html
http://crafts.kaboose.com/swf/gods-eye-kaboose-craft-photo-350x255-fs-IMG_0904_rdax_65.jpg
I made one of these too
Coffee can drum
http://crafts.kaboose.com/coffee-can-drum.html
Only i used real leather and lacing, not yarn and felt.
Bleach bottle bird feeders
Plaster, or bondo casts of tracks
You may have to fake up some animal tracks
or do a CSI take and use tire tracks or shoe prints
christmas tree ornaments
We did macramé hangers...knot work
a water bottle sheath with hangers...
wasn't too quick though
clock kits ...mostly assembly of prefab stuff
Chain Mail
I know as a cub, this would really catch my attention.
small and simple keychain fob...
dollarstore pliers with the teeth ground smooth, or taped, or not...
buy precut rings
10$ for 500 rings, aluminum is really soft and easy to use
If they like it, they can make anything they want later
http://www.chainmailguy.com/rings&tools.htm
I know that this fellow is in Ontario and sometimes does free demos, especially if there are sales from it later.
weather vane
kite from paper, balsa, glue, string...
balsa wood paper, airplane flying models, Iloved this stuff.
rockets
whistle
http://www.countrylovers.co.uk/fun/whistle.htm
tie dye
wind chimes
rubberband boat
I made one of these, probably in the old cub scout book too.
http://www.ehow.com/how_4890376_puddle-paddle-boat.html
http://www.youtube.com/watch?v=oQLm6JY0pt0
[youtube]oQLm6JY0pt0[/youtube]
rope ladder-emergency home fire escape ladder
with wooden steps - predrilled holes in pre cut 2x4 steps, essentially just putting some knots in the rope and threading the steps on.