At the risk of sounding like the fabric police (!) the "tweed" fabric on Fender amps is actually a twill weave. Tweed is generally a woollen fabric and not woven in a twill weave. Denim is also a twill, so Mr Okstateblues is correct that denim might be considered a "poor man's tweed" in that respect.
Whatever the technicalities those pedals look great! Love the icecream sandwich. Very clever. Might break a tooth or two but probably worth it.