If you've got a spare $600 laying around, but that buys a lot of filament!
CNCKitchen did a review of the Arteme 3D here: https://www.youtube.com/watch?v=BT04glGDjB4
But unless you've also got a grinder, a spare oven to dehydrate the plastic, etc -- it's just not worth the time.
What I've seen people suggest is to just buy a silicone mold from Amazon -- something you think is cool -- and dump little scraps of filament into the mold and bake it in a small toaster oven. The plastic will fill up the mold, making something nice and heavy to use as a paperweight and/or sell on etsy.
Something like this: https://www.youtube.com/watch?v=nypitKDr928