Well, there are great webshops in Germany. Banzai and Musikding both sell a bunch parts and kits. Both are heavily music related ofcourse. I haven't ordered from AliExpress yet, been looking through customer reviews and I'm kinda reluctant now, even though these are the simplest of components. The resistors are probably b-stock and often mislabeled or have a different value. No biggie for a hobbyist, you just need to measure resistance for each one to know for sure. If 90% of the bulk pack is faulty, than it's still cheaper than buying from a respectable webstore, so it's tempting! Capacitors are the same story but I don't have an esr meter, so no bulk package of caps for me. IC's and transistors are a no-go to buy on the cheap imo. What I probably will buy is a bunch of LED's. 6 different colours x10 for about 3€. And knobs, different colours and shapes. You know what sucks about DIY pedals? Going to a above mentioned site and finding all the parts..except for that one IC and potmeters with the wrong shaft dimendions..