generic flipper fan tower.

thingiverse

Holds a 40mm fan above a flipper coil. Fits a standard spike 2 flipper. Might fit other flippers. Not fancy but it works. Had planned to refine it after testing it for awhile but after 6 months and several thousand games all 4 of them are still working great and I'm lazy. Print in mirror mode for the opposite side flipper. No warranties expressed or implied. Use at your own risk. No support provided with printing, modification, fan selection, hardware, installation, power delivery or anything else for that matter. I hacked this together for myself for personal use. I trust me because I know me but to you I'm just some dumbass on the internet. If any of that concerns you at all then I recommend buying one of the commercial options. Those guys did their homework. You get what you pay for. Pinball machines cost thousands of dollars. If you break yours trying to save a few bucks that's on you.