Andrew currently has over 20 of his unique fly patterns in being produced by Umpqua Flies in various sizes and colors. Umpqua's quality is second to none and their distribution is the largest in the world. Most any local fly shop can order any of Andrew's patterns if they're not already stocking what you're after.
Here's a post from the Duranglers blog in SW Colorado about the Hippie Stomper.
Here's a nice article that legendary angler Paul Bruun wrote about Andrew & the Hippie Stomper.
Here’s an interview with Paul Beel, from Frankenfly.
Here’s Andrew talking about his favorite Tiemco hook.