I just used "crystal clear"/flat housings from ebay. They were $20/set.
I wish i still had pictures but it looks like i deleted them. I basically just took the housings and cut the back off of them leaving an opening that was wide enough to fit the projector in. Then i put some PVC pipe between the front and the back half of the housing, slid the projector in, and glued it all together with some really strong plastic epoxy made for hot tubs. It sounds a little hokey but you'd never guess they weren't high-dollar unless you looked at the back. Because it all bolts in where the stock bulb goes, you retain all the stock adjusters.
The hardest part is making sure you have enough room behind your headlight mount for the projector--even the morimoto mini's are (IIRC) 5 3/4" deep + another 1/2" for the bulb and pigtail.
For some ideas check out
http://www.hidplanet.com/forums/
They have a section with DIY writeups or you can search for your bulb name.