Ask HN: What to do with a huge dedicated server?

Hey everyone. A few months ago I won a dedicated auction of a dedicated server but it's so powerful that I don't know what to do with it.

I allocated myself a KVM VPS inside of it with 16GB RAM, all cores (16) and 200GB Disk (Dedi has 420GB of RAID10 SAS drives) and unmetered 100mbit. I only use about 20% of that VPS.

I don't have spare IPs so I cannot create more VPSs unless I pay extra.

What would you do?