Beer doesn't go with fruits. At least for me, it would give stomach irritation or upset.
If you want alcohol then I would get someone to bring an non-complicated ice cream such as vanilla, strawberry, pistachio, mint with chocolate chips. Green tea ice cream?
Then pour some Southern Comfort over it. If not SC, then some kind of brandy or cognac. Slivovitz even?
Just my two cents worth
Have a fun time tasting fruits and testing the brix on the ice cream