Working Buoy for R/C boating

Video : https://youtu.be/C827liTrsOw
PLA for bodies and clear PETG for lamp housing
40mm rubber sealant ring for waterproofing
3 pieces of 2mm plastic rods used as support
8mm high intensity LED for lamp
DIY flashing electronics housed in upper shell
180mAH LiPol battery housed in lower shell
15mm circular magnet in bottom of lower shell for easy retrieval from water
Pieces of lead sheet in bottom of lower shell to hold cg in water