Hamster home roof problem!

Does anyone have any ideas what to use for the top to a fisk talk in order to make it into a ventilated hamster home? Suggestions would be very welcome!

[leafpool14]

A wire mesh would be alright

[souffle]

Some people make a wooden frame and put weldmesh or a strong wire netting over this and slot it on top. You could also use a normal aquarium lid and attach it with the self adhesive velcro to hold it in place.