ok i am using a huge frame because im a big guy. I want to drop a 26" standard cruiser frame down. can i use 24" wheels. how does it look? how else can i drop this bike?  

you can fit 24s it akk depends on your bike as to what it would look like you could also drop it by adding springerforks and possibly a down crown  

You can use what ever size wheel you want, as long as the chain is compatible with the front and rear chain rings.
Your idea is cool, I'm working on a sand crawler, using a 26 inch bike with an installed 20" rear wheel. . .

It aint working yet.