bondo body filler is normally used to fix dents in cars and trucks but A can use it for making small plastic like parts pieces or toys ill show you how to cast bondo in a one time use plaster mold for bondo

Step 1: Supplys Tools

stuff you need to cast bondo

Step 2: Wax Part 1

you need a chunk of wax and the small knife carve out the part you need to cast in bondo sorry for the low quality but this is the piece made of wax

Step 3: Plaster Part 1

ok now your going to fill the canister with plaster around the wax

Step 4: Wax Part 2

now the plaster is dry chip of the lare on top of the wax then make a funnel like shape on top of the plaster with a knife thin melt out the wax I'm the microwave

Step 5: Bondo

ok now mix the bondo and smear it in the cavity in the plaster left from the wax tap it sow there aren't air pockets

die yo-gi-oh you wasted my life

jk

Step 6: The Brake

now that he bondo is hardend its time to brake off the plaster water helps a bit but it only takes a minute to scrap it off with a knife and then all you need to do is trim up the sides on it and your done