Bit of a random find in our local B&M store this week, a Toy Story branded bubble bath container that would make an awesome pulp rocket!
Best pic I could find on the web, sorry.
The rocket is hard plastic, and approx. 8 inches high. It would need a little work to remove some of the branding, and a bit of a repaint and detailing, but should work as a lovely three or four man transport for Flash Gordon type adventures. A 28mm figure should come up to around the middle of the stabiliser fin.
They only had a couple as they were selling them off (£1.29 each!) so The Boy got one to play with in the bath, and Daddy got one to muck about with....
Check your local B&M stores if you get the chance!