Rub a dub dub, shoot me in the tub!

I'd love a fresh innovative tub-themed photo. My photos are mainly pinup glamour with more serious themes, and I'd like something bubblier :-)  I was even considering casting Pierre, my life-sized stuffed KingKong silverback gorilla as my co-tubber. Something fun!
Fill the tub with marbles! Rubber duckies from the dollar store! Leaves!
Really blue water (food coloring?) Tapioca! I don't care.

Let's make some art folks!