>>5694858Depends where its loose. Warm up the leg and foot, then pull the foot off.
If the joint is loose at (1) wrap a bit of masking tape on the peg, not too much.
If it is loose at (2), you may need to water down some PVA glue and drip a bit into the hinge, hopefully it seeps in. Or maybe heat up the joint and disassemble it then drip some glue into the connecting pieces.
>>5694905Or that.