I came across this kickstarter to send a miniature Death Star into space: https://kickstarter.com/projects/blazesanders/1277487702?ref=620900&token=ddb9ff10
. Scrolling through it, my eye was caught by the screenshot of... PropTool?! On closer inspection, this proposed project is indeed Propeller-powered!
Note: the campaign is not live yet, and I have no affiliation with this project.