I was in the supply closet at work and noticed something that I could use. It's rubber tubing that we use when we set up automatic traffic counters...STL's!!! So I talked to one of my buddies who deals with the stuff all the time and asked him if he had any extra to spare. He's like "dude, we have miles of that stuff.". So he brings me over like 75-100 feet of it and tells me he can get me more any time. Looks like I got something new to try when I get home!