Cutest Knitted DIY: FREE Pattern for Cozy Slipper Boots--site has crocheted and knitted slipper boots
This pattern is for knit slippers, but I can totally see using a wool sweater and cutting and serging slippers from it! Home Slippers - DIY. this is knitting, but I bet I could use this to crochet some
Russian pattern for knit slippers
Malabrigo Loafers – knit slippers @ DIY Home Crafts
Just goes to a bunch of ads!