These are some I prepared earlier.....
I made some mesh frames to sprout grains for either grass (juicing) or to make essene bread with just sprouted grains. Got some s/s wire mesh and made some frames with the plastic edging you can buy from DIY shops. The frames are suspended over a tray if grown for grass, or go into a rack, as Dave mentioned, for just sprouting. I am experimenting with various frames, and racks, and one day it'll all go on my site. S/s mesh ain't cheap, I bought mine from the manufacturer, but had to buy at least £100 worth (+p&p and VAT), if I remember rightly, and that was for approx. 4-5 meters at about 3 feet wide. It comes in various grades. Might consider selling it in small quantities, when I get around pricing it, but if you are impatient and want to buy some, this is the company
www.wiremesh.co.uk. For hydroponic grass growing the wire mesh is necessary, but for just sprouting a few days (before the roots go into the mesh) you could try stretching plain nylon net curtain over some frame. Charity shops abound with net curtains, look for one with only a patterned border, and plain mesh across most. Best way to water the sprouts is with a spray bottle, a few times a day.
Oops, just noticed I can't post pictures, at least not in the normal way. I will try to post the picture as an avatar for the a while. Meantime I will try and get it onto my website.