This will securely hold a Milwaukee M18 Fuel jigsaw (model 2737-20) and should work with other brands and models as well. There is a relief slot so that the saw may be stored with a blade in place. Additionally there is a circular feature to store the dust extraction tube beneath the saw.
I recommend printing with four or so parameters for strength. With good bridging settings, no supports are necessary. The included holes are sized for #6 wood screws.
I have designed other similar holders for a variety of M18 tools.