So I have this mesh feeder! Ibwas wondering what fruits are okay to put in it, or what fruits y'all have done? Right now…

So I have this mesh feeder! Ibwas wondering what fruits are okay to put in it, or what fruits y'all have done? Right now I have watermelon (seedless but it has those little white seeds🙄) and was wondering if that would be okay? Should I freeze it in icecube trays first? Are just plain ice-cubes okay? Suggestions would be helpful please and thank you!(: