To have them professionally printed in a material that I trust, like I did my own, they run about $20-25 each. I would need to price them again. That is for a mount that would go in .35-.46 size plane (a Magician and a Tutor II, in my case). Smaller motor, smaller mount, cheaper overall.
For a 1/2A size, I priced one out to less than $5 each, and would mount just like a plastic Baby Bee mount that Sig and Brodak make.
To simply have them printed in ABS filament, the price goes down. Again, I would need to check on it. Hopefully in about a week or so I'll have my printer back up and running and I can print them myself. For a simple trainer, or combat plane, realistically PLA filament would likely be strong enough. ABS filament would be better, but cost a touch more.
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