I like the rat sputniks for hanging toys. You're a bit limited with the lid of the Zoozone opening upwards as anything attached to the roof needs to clear the front to open the lid (if that makes sense. Hanging a rat sputnik in the middle/nearer the rear of the lid should work. Then you just have to check the hamster isnt in it when you open the lid
I have tied a rat tube to the top before - it could leadfrom the platform to somewhere else (eg the sputnik). You can use the cardboard boredom breaker ones and sisal string to tie them up. If you were looking at buying any toys these are my favourites
Hyacinth tunnel - nice and soft, chewable, has multiple entrance holes. Plenty big enough for a Syrian but not as huge as a rat tube.
https://www.amazon.co.uk/Rosewood-Bo...yacinth+tunnel
This trio of balls. I only actually use the hyacinth one as a toy (it's good for sticking treats into under the layers - eg sunflower or pumpkin seeds - so they have to work to get them out - I usually leave a bit of the seed sticking out or they give up to easily!. The sisal one I unravel and use as sisal string - eg for tying a tube to the roof! The wicker one I find a bit sharp and scratchy and don't use.
https://www.amazon.co.uk/Rosewood-Bo...=trio+of+balls
These are the cardboard boredom breaker tubes - I had one of these tied to the roof - you can just punch holes in it. One of these is also useful to tempt a hamster into with a bit of food at one end if you want to get them out and then put your hands over the ends of the tube and lift it out. Also for out of cage time or in a playpen.
https://www.amazon.co.uk/Rosewood-Bo...eaker+tube+rat
Hamsters generally aren't that interested in playing with toys but they need variety in the cage, hidey places, they like toys that are food related (eg treats stuck in the ball) or chew sticks. They like tunnels to run through.
Having quite a few floor toys adds to enrichment so the cage doesn't seem too empty - but cardboard boxes and toilet roll tubes are fine too
This is the rat sputnik - a kind of plastic hammock. It hangs quite low so they can usually climb in from substrate level (depending how deep the substrate is, although having it next to a platform can be good to encourage them in it. A bit of bedding in the bottom makes it cosier.
http://www.petsathome.com/shop/en/pe...l-ferret-house
If you get one from rat rations they're about a pound cheaper and you can choose various different top and bottom colours.
I'm assuming it's a Syrian hamster you're getting? If not, ignore the rat sized tunnels
The hyacinth one is fine for a dwarf hamster as well but the boredom breaker one is too large really (they do make a smaller one). I actually have a rat sputnik in our robo dwarf hamster's cage though just for a bit of variety and somewhere to go.