Isn't that what 3d printing is for! Bobbles and Vases are kind or useless.. bracket, hooks and clips etc is where the fun is. I just made a jig to cut 4mm filament pins used to assemble a 3d chess set. https://youtu.be/mNx34kdgvts Adding the solenoid and foot pedal was not really needed but fun and satisfying!
https://www.thingiverse.com/thing:4009379

Just printing things other people make can be a big help, but modeling and fabricating things you need to your specs is the best!