Welcome to the forum both of you
I haven't been here long myself but it's a great place here and I've had lots of good tips about everything hamster related including making toys for them
I had a go at making some cardboard toys for my hams a little while ago. I got four circular pieces of cardboard and made three cuts into one, one cut into the other three and slotted them together to make little tables. It took me a while to work out how to make it work properly but they love them now
All mine love a bit of plain white unscented toilet paper too as the other members have been suggesting