I just bought a trike off of CL last week for 50.oo, My intentions are now to find a tandem and make a flatbed out of it w/ wood slats and all, no hurry could be my RRBO 3 entry 8)
i've never worked with trikes or tandems but i saw it on this site before
take the back two wheels on the trike off
like the whole assembly
and mount it on a tandem or http://www.bicycledesigner.com/defaulth ... r%3D860004
awfull pricy but it would work