It can also be customized depending on the size of your bird. Another similar idea is to use carabiners to hang various playthings from the top of the cage, such as in the picture. You can either ...

In this case, opt for a suet feeder without a base, one that has a base that fits flush against the wire suet cage with no gap, or try your hand at this easy DIY natural suet bird feeder made out ...