Is your question, 'Are my chickens good enough quality to show at 4H?'. And if so, post pictures, but our 4H let anyone show mixed breeds or whatever and just judged on showmanship. Contact your 4H, or the show secretary directly to find out what you need.
If your question is: 'Should I donate my chickens to a 4H club?'. Then I again would contact your local 4H and ask if anyone needs them.