Congratulations on your first play time! I've had my joeys for about 9 weeks now, and we just keep having more and more fun as we learn to trust each other.
I still have a couple of cat toys
left from my kitty who passed away a few years ago. My gliders have discovered those toys
and they love them! The first was my kitty's favorite toy - a long stick with several floppy leather bits at the end. The other is a hanging scratching board, which the gliders find great for climbing and also a good landing point from a leap.
I recently made a little craft project and had some leftover pieces of cotton cord. I tied up the bits of cord in the middle, and this is now their new favorite toy. Honestly, I haven't found anything that they DON'T love playing with yet.