Want to get creative? I have a Street Glide fairing that is going on my bike, however, I may not be able to use all the gauges that come with it, since it is a 2001 and the fairing gauges are 2007.
What would you put in these "holes"?

this should be a hoot...

 

If it were me, I would figure out a water temperature gauge and nuclear reactor gauge.

 

Mickey Mouse watch?

Barometer?

 

If you don't know what to put in her holes, you get your man card revoked.

 

Boost pressure. Everyone will think its a trick pony.

 

A gauss meter , that'll leave most scratching their heads .

 

A dosimeter is always handy to have

 

 

Compass rose

 

Magnetometer I scratched for a minute