To view or subscribe to RapidNotes , RapidPro's newsletter, please click on the subscribe link in the side bar. This month's edition features a 20% Off special for Plaster Prototyping projects and a great story about getting the best prototypes for your needs and budget! In Brief Prototyping in plaster is the cheapest rapid prototyping technique available. It is cost effective, and an excellent way of presenting a model or mock-up to your clients. Available in full colour, plaster prototypes are built using 3D layering. The plaster is then infiltrated and strengthened with polyurethane. Popular with graphic artists, we have used this technique for architectural testing and display, gaming characters (right), artists marquettes and packaging redesigns. Plaster is a versatile material which can be hand-finished in many different ways. It can be chromed to resemble metal, such as the tap and faucet (right), or sprayed with a high gloss to give the appearance of baked enamel, like ...