The tumbler idea is an excellent idea... Just start cutting! I've used chatm packs this wsy, and the results are do much fun.
But, that's just me.....
easy - I know I am in the minority on this...so many love charms. But I have an over organized mentality kind of thing and even scrappy quilts just say "clutter" to me! I know... I have to get out of my box... I am trying!!! LOL!!