HELP ideas for competition prizes for these age groups?

[Eggybreadwithnuts]

So what are kids into at these age groups? Needs to be unisex

5-7 year olds - soft toys???
7-11 years old
11-13 years...vouchers????

Slime, making things set
Not soft Toys everyone has enough

Lego or small building sets, age appropriate to each group, no soft toys.

Friend says....Squishmallows

Lovely colouring pen set, books, lego, spirograph, craft set, science set, doctors bag, till with plastic money etc etc.