Update 20240311:
The tail often breaks, so there have been minor changes made to it. If you have the same problem, you can switch to the new tail.
Update 20231230:
The body has been redesigned to be wider, providing an even better grip experience.
Blade purchased from Muji (Cutter Refill Mini), around 40.2 x 8.7 x 0.3 in size, no support needed when printing.
The author marked this model as their own original creation.