Frink

I'm in the process of building the Midibox SID. I think I may have finally made it down to my last batch of orders to finish the product (I haven't actually started assembly, it's been a while in the planning) and I realized that I didn't have any working knobs. I was just curious what type of knob is best for the rotary encoders on SmashTV's site (and where to obtain them would be helpful). Thanks in advance. :Edit: I am located in the United States as well, figured that would help for location purposes.