Uses for Old AirPort Extreme N Router?

[callmemike20]

Ive been using an AirPort Extreme-N router since 2008 and just replaced it with a Nighthawk x4s (huge improvement!). The AirPort Extreme is still in good working condition, so I'm wondering... is there anything else I can use it for?

 

[T5BRICK]

I'm planning on upgrading to something like the Google wifi setup soon to and I'll take my AirPort Extreme over to my parents house. It's about time to upgrade their old D-Link 802.11G router to something better.