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I doubt there is currently one for something so small scale. You would need a fuel that is more energy dense and burns slower.
Which achieves nothing for small scale tests, as small scale tests don't have to worry about making human pancakes, or delivering so much force to such a heavy object that it tears itself apart.
Which means only people concerned about doing 1:1 small scale tests first, would bother.

To put it simply it's comically niche, and I'm not going to bother looking for it.