I went and made 3 pix for you.

I made this for cloning a couple months ago...

It is nothing more that one level of a plastic shelf unit...
I took a cardboard box and wrapped it in panda plastic, then strategically poking some holes in cardboard piece, I wrapped/zip-tied fabricated piece to the shelf unit.

I cut out some of the middle support braces and wired in a standard receptacle to hold a 45w cfl...that's all you need.

these clones are just a week from cutting and most have rooted.

The propagation tray, is as stated above, a simple plastic starter tray w/dome...I use rockwool starters...soaked overnight at 5.5-6ph...shake water out real good, insert clone without damaging stem...add 1/4" water in bottom of tray and place your clones inside. close the door.

open top of propagaton dome once or twice a day to let in fresh air...you can also spritz them a couple times a day.

the key to successful cloning is no-wilt, or similar products like it...I also use miracle gro, leafshine for this purpose and it works exactly the same as the pro anti-wilt products.
this product keeps your clones from withering away, whilst you wait for roots.

I am going to give you a link, that if you follow, you will start cloning successfully.

http://boards.cannabis.com/showthread.php?t=64187

It was for me to learn this method from 2 other very experienced growers here.

I have always in the past used bubblers or aero systems to clone, but I actually like this better, despite all my past success with hydro cloning.

Oh yeah, you can fit 54-60 cuttings inside this box...

goodluck

lw