Thanks, John-
You've given me some direction/ideas I can use here. I had printed out plans for a WTB months ago, and they seemed to require specific materials. But experimenting with the stuff you mentioned will add to the instruction as well.

BTW- they don't need an incentive to grow up- they think they already are! Ever see a 6 year old dress like/unconsciously mimic Brittney Spears, etc. AAARRGGGHHHHH!