Very old thread Vido. Haavard has not posted in a long time.
Drew Baggett (drewtang), of Inspired surfboards said he lays up a sheet of FG cloth on a smooth flat surface covered with a releasing surface (releasing agent, taped down polyethylene sheet, etc.). Marks his template outline on it and cuts with scissors (I will assume right at the tack free stage).
My new approach will be to take printed (or hand-drawn) paper/card stock/heavy weight poster cardboard templates and either lam a layer of 2-oz FG cloth over the paper/card stock or just coat the card stock/poster cardboard with a layer of epoxy resin. Then cut the template outline with scissors right at the tack-free stage.
For things like this, I built a glass table from 2 pieces of sliding-door glass, 4 saw horses, PE foam pipe insulation and 2 pieces of 1/2” X 24” X 30” Baltic birch plywood to keep the glass sheets from bending (BB plywood keeps glass flat). I also add a sheet of 1/8” thick cork underlayment between the sliding-door glass pieces to improve impact absorption/dispersal.