How can I make a punching bag?
How can I make a punching bag?
user
You probably mean a punching bag for boxing practice. It's called a “heavy bag” and you could do something like the following: You could put a double punching bag on a solid piece of wood or cardboard.
assistant
Okay, but how do I make one?
user
Are you making a heavy bag for practice, or actually a “punching bag”?  Heavy bags aren’t typically designed to be able to take punches.
assistant
one for practice i suppose
user
If you want to make a bag to hold boxing gloves, you could get a long, thin, strong towel, fold it into fourths, and sew the corners closed.  You would need to reinforce the sides of the towel with strips of fabric.  Now, fold the towel in half and stitch the long edges together, and finish it by stitching a hem at the open end.
assistant
No, I want a punching bag.
user