I really wanted a boot/glove dryer but was unwilling to pay the $30-100+ price tag.
Lucky for me I had an exhaust fan from a bathroom renovation project.
I spent $11 on a bilge hose at the local big box home improvement store.
I searched everywhere for a wooden box/old drawer/plastic storage bin/etc.
Then I saw an empty kitty litter bucket in the garage.
I cut out a hole to fit the fan.
Drilled holes for hoses (1 1/2") 4 on top for gloves, 6 around the outside for boots or extra gloves.
Drilled a hole for the plug and cord.
Then I worried about the open holes when I wasn't drying 10 items, the neighbor (who is in 5th grade!) recommended that I use flaps. This turned out to be ingenious. I cut flaps of packing tape to overlap leaving one edge of sticky to stick to the inside of the bucket. when the fan is on the air pressure almost totally seals the "flaps"
I have yet to try this out on wet boots, but I am pretty confident that it will work well based on the airflow and my past experience with a smaller boot dryer (which was more expensive and REALLY effective).