Popular things that I brought back from guate: table cloths,quilts, wallets(I like the ones with the inner zippers that conceal how much money you are holding), bolts of hand woven cloth,carved masks in both stone and wood, any well done precolombian art reproductions. I bought some handmade knives that could be considered art if you are so inclined. A product that you might consider helping your clients develop is cheese, the cool climate that you enjoy is ideal for cheese production. Antigua has a market for good well made cheese, it's an upscale place where handcrafted food products will find customers if done well.