How do I get a urine sample for my 22 month old son?

Question

I need to get a urine sample for my 22-month-old son. They gave me these adhesive baggies that don't work at all. He's autistic so there is no way I could get him to pee in a toilet or stand in the tub. He needs to get a sample for a food intolerance test and we are having the hardest time. Please help!

Answer 1

make him drink lots of fluids, give it twenty minutes, then do the cup game trick.  

Answer 2

Throw a cheerio in a cup and make a game of him peeing on the cheerio. Good Luck!

Answer 3

Put him (his feet/legs) in really warm water and tell him to pee.

or do the cheerio idea like that person above said.