I used to make my own gland lure for coyotes its real simple you could also use the same basic formula for fox or cats. First you need glands the most common are the lympth nodes found at the jaw,under the front armpits .along the belly and also the anal glands with approx 4" of the intestine attached. these are collected from each catch .Then i put them into a jar as collected ,and they are placed into a ref.[for this purpose]age them all winter then grind them up and seperate intobabyfood jars,leaving a little headspace for expansion,add a beaver caster to a quart while grinding .after bottled bury about a foot deep for the summer and in the fall you will have a gland lure that works like none other. i also add a drop of skunk essence to a bottle or two at the time of bottling just for a little change-up lure . anyone else have some to share?