I enjoy putting models inside enclosed slinkies as a variation on the classic toy. This also allows for creative touches. Inside this enclosed slinky is a decorative Easter egg dangling from the top.

Instead of putting Easter candy in cheap, store-bought plastic eggs, put it in these slinky eggs that make great fidget toys long after Easter is over. The egg consists of three nested coils, spiraling in opposite directions to keep candy such as jelly beans contained within it. It also requires a bit of effort to get the candy out, so there will be no dumping an entire eggful of jelly beans into your mouth.

This is a surface discovered by Paul Nylander (www.bugman123.com) “while trying to create a visualization of a spiraling spin-lattice relaxation for a physics experiment involving a Nuclear Magnetic Resonance (NMR) spectrometer." I printed the sample in the image using PETG with PLA for support interfaces.

This is a bowl made from a non-orientable surface called Boy's Surface (see https://en.wikipedia.org/wiki/Boy%27s_surface ). While a pure version of this surface would not hold water, this one does because of how it's generated. (You'll likely need to seal the surface with a clear coat of something to prevent leaks.) Because the pure version has no “inside” or “outside” surface, it would not hold water. I'll upload a leaky one later.

#Newmodel What's New This is version 2 of my Spool-O-Scrap. I improved how the dividers attach to the hub; they now snap into place. To enable efficient printing, a sacrificial connector connects the flexing part of the hub to the hub itself. Depending on printing precision, this connector should break the first time you snap a divider in place. If not, use your thumb to slightly flex the flexure to manually snap the connector. Original Description As I'm sure everyone does, I have a lot of relatively short segments of filament. To organize these and make them easy to use in an AMS, I designed what I call “The Spool-O-Scrap.” I took the base Bambu spool hub and modified it so the spool can be partitioned into up to 11 sections. There are three sizes of section dividers; all are small enough to clear the AMS filament feeder. Just slip the dividers over the hub and twist to lock them in place. There are holes around the inner and outer divider rims to anchor the filament. I've made the parts on both an old Ender 3 (8-bit) and an H2C. You will likely need to reem out the rim holes when printing on an older machine like the Ender 3. I may well have re-invented the “spool” here, but it helped refamiliarize myself with Fusion 360 after a six-year absence.

#Newmodel As someone interested in using mathematics to make art, this bowl incorporates a Poincaré tiling. It's not an easy print, but my H2C did a nice job. I'm also not sure what the best orientation for printing is. The one Studio suggested seemed sub-optimal, so I reoriented it to reduce the support structure. You will definitely need to use supports that are easy to remove. I printed in PETG with PLA at the support interface. While I haven't done it, it might be interesting to try printing in ABS and then using acetone to smooth the surface, since you can't really sand the part.

Spool-O-Scrap 2 This is version 2 of my Spool-O-Scrap. I improved how the dividers attach to the hub; they now snap into place. As I'm sure everyone does, I have a lot of relatively short segments of filament. To organize these and use them in an AMS, I designed what I call “The Spool-O-Scrap” which modifies the Bambu spool so it can be partitioned into sections. Slip the dividers over the hub and twist to lock them in place. There are holes around the divider rims to anchor the filament.

As I'm sure everyone does, I have a lot of relatively short segments of filament. To organize these and make them easy to use in an AMS, I designed what I call “The Spool-O-Scrap.” I took the base Bambu spool hub and modified it so the spool can be partitioned into up to 11 sections. There are three sizes of section dividers; all are small enough to clear the AMS filament feeder.#Newmodel(Edited)