@classybonsai if you add a general location to your profile, we can help you out with something in your area that will qualify for the contest.
A starting place for rosaceae is of course roses, but also anything apple.
For moraceae there are mulberry and ficus.
Read through the Wikipedia articles on each family for more ideas. Your work on this and your honeysuckle looks great, and we'd love to see you do something for the contest.