This version of the muskrat nymph, is the easiest fly I know how to tie, making it one of the best fly for beginner fly tyers. It uses only one material, but catches fish like no other fly. There’s also a slightly more complicated variation using a couple more materials that you can see in the video below (along with this simple version). Thanks to Mark Belden and Joe Humphreys at Penn State University for teaching me how to tie this fly. – Eric Reichbaum