Canned Cock, almost a chastity device…

It's actually a piece of steam-pipe, cut at an angle of 30 degrees at the one end, in order to make a snug fit behind the glans, as you see..

NOTE: It must be steam-pipe, as the common waterpipe has a very uncomfortable welding on the inside !

BUT a semi-rigid penis into the tube + erection = canned cock..

Another option is to use a bend...

-and if you apply it this way, he'll have a hard time putting on pants.... *GG*