Entomb your work forever!
A rather grim-looking case, built to last:

• No re-assembling allowed
• Glued-down lid (OTA updates or nothing)
• Sturdy walls around the 804040 LiPo
• CableWire-management so tight, you better salvage a bunch from that HDMI cable
• No external indicators, except for the charger's cooling grate
• • Better install that battery-sensing resistor!
• Built for MPU-6050 WeMos D1 Pro Mini V3.0 (Should work with any other D1 Mini Mini)
• Optimized for FDM 3d-printing (ABS/ASA for that satisfying brick feel)
• Engrave anything on the lid using Windows 10+ 3D Builder program, to get a subtle, yet recognizeable pattern on top