A very simple remix of an amazing clean compact design that I love from
neil3dprint's Customizable Mouse Top Shell for Bambu Lab wireless mouse kit 002

• Print this Top Shell in Red
  - Supports (Tree auto)
  - 0.2mm
  - 15% infill
  
• Print the Bottom Shell in Yellow

Things you'll need in total besides this top shell print;

• 1) The Electronics; Official mouse components kit 002 by Bambu Lab
  https://store.bambulab.com/en-sg/products/wireless-mouse-components-kit-002
  
• 2) Bottom Shell; by Bambu Lab (you can get the bottom shell from there)
  https://makerworld.com/en/models/13716?from=search#profileId-14573

Have fun!