ive made alot of drums out of old tin cans, or like plastic paint buckets.....take and cover the open side, with electrical tape. or duct tape if you can get the tightness right. i notice putting the tape across the opening like a asterik or star, or 8 point chaos star thing. etc..... works better than putting the tape straight across in parallel strips. it takes practice getting the ...taught..tight? the boncyness...its hard to eplain a lil what im saying. if the tape sags obv theres gonna be no sound. it needs to bounce and rebound from a hit, recoil from a hit, u see what im trying to say ? like a real drum.
i used to own a djembe. the head or watever was actually metal, not skin.
but u can see that just about anything with the right like...recoil-ness, u kinda gotta fuck with shit stretching it out hitting it. kinda using like mechanical skills of some sort in ur head to imagine what the sound would be like over a drum. or bucket. or tin can. etc.
if i was going to make a djembe or if u already own one id recommend heavy duty electrical tape. just get it thin. if u can. plastic can work too but it has to be something like . a pool cover. thin pool covers work great.
also if you do a sandwich of tape, sheet(experiment with papers, plastics), tape....u can find different sounds and shit.