For my recurve form, I just cut a bend, with a notch at the end to hold the tip, in a 2x8. Works like a charm.
For the R/D, I use two shallow curved blocks. I put these down on a long 2x4 and clamp the bow down, belly up, on top of this (I then heat in the shape, but for laminates you'd just let the glue sit obviously). I haven't had alot of problems with this, because if the bend is slightly off I can readjust it with heat (I've been tillering R/D bows with heat as mush as scraping!). It also allows me to experiment with where I put the bends. Lately I've been putting the reflex in the outer limbs and putting the deflex closer to the handle.
Although alot of people find tillering R/D bows harder than other types, I think that the lack of alignment problems with the recurves and the simplicity of the form make a R/D bow worth it
I hope this helps