Try the silk worm tour! It's absolutely free and they provide transportation to and from silk worm farm. Really interesting to see how silk is made from start to finish!
Workshop, training school, and souvenir shop. The items are a little expensive, but the quality and design are so much better than what you can get from the Night Market.
Fun 30 min tour to see how things are crafted the Khmer way still and where the earnings go to help people learn skills. They have a store at REP airport international terminal.
Its a pitty they don't sell silkdrapery per meter, if someone doesn't have the standard cloth size 36-40 there is no possibility to get clothes from this beautiful material