Can We say a Ki'ds Cup for the short stuff

Lol so for lunch after we got done with all our stuff me and my husband went to Chili's. Well lol when we got in there the host took us to our seats and he was like what can I get you guys to drink. Well we both said dr.pepper. Then like about ten minutes or so he gave us our drinks well Joseph got the big cup and you know what I got. He gave a little kids cup. Lol I guess he didn't old enough. Well lol finally our waiter came over to us though and brought me a big glass and she said it was no charge for the little cup lol but we all cracked up because it was just so funny. lol ya had to be there.