That's so fucking wrong... It's "pike." His head should be on a pike.
While a pike might be a type of spike, the battle purpose-built pike is far easier for head impalement and more commonly associated with severed heads.
A pike is a long pole with a spike at the end. This is perfect for mounting heads when parading through the streets, but is less desirable for a permanent fixture, say on the steps of Congress.
A spike is usually referring to a fixed emplacement.
That is fascinating and I appreciate your input! So, we should not only consider scope of whether we stop at Bozos and for how long he/they will be displayed?
Oliver Cromwell's head was displayed for 30 years on the Tower Bridge. Granted he was already dead before he could participate in the process, so he was dug up, then hanged, drawn, and quartered, and his head was mounted on a spike.
The trick to a long-lasting head on a spike is to dip the head in tar. It slows the decomposition... Although I'm sure there are modern treatments that would work better, maybe freeze dry and then an epoxy under vacuum?
I usually find them obnoxious, but I'm looking forward to that episode of Evan and Katelyn. Especially since they usually get their projects wrong the first few tries and will need to utilize spare billionaires' heads.