The popularity of shapewear for women has given rise to equally body-enhancing undergarments for men. Clothing manufacturers such as Marks & Spencer, International Jock, and AussieBum have introduced specialty boxer briefs and jock straps meant to boost the most important part of the male anatomy. But you don't have to pay up to $30 for one of these garments when the items you need are already lying around your house.
Choose a pair of briefs, boxer briefs, or a jock strap to which you'd like to add padding. Make sure they're tight enough to keep the fabric in place.
Choose some padding to insert into the undergarment that you chose. Try out several kinds to determine the most comfortable. This can be one or two socks, a small folded t-shirt, or a shoulder pad removed from an old suit. If you're brave enough, you could even use a woman's maxi-pad.
Attach a piece of two-sided clothing tape to one side of the padding and stick the other side to the front of your undergarment. The tape allows you to remove or adjust the padding at will.