コンパスの作成は思ったより簡単です。
Water, magnet, needle - Compass!
方位磁石(コンパス)の作り方 How to make a Magnetic Compass
自分だけの木製コンパスを作ろう
How to Make a Homemade Compass - DIY Compass
特大コンパスの作り方 – 素早く簡単に
自宅で磁気コンパスを作る方法 - DIY コンパス
How To Make a simple compass / harppi
簡単コンパス自作 How to make a Compass at home
How to Make a Wind Vane - DIY School Project
550 Paracord Outdoor Survival Bracelet with Whistle, Compass, watch and Fire Starter & many more
Woodsman’s Simple Compass
How to make a Compass at home
ビームコンパス DIY (チュートリアル)
How to make a simple compass at home || diy compass
簡単なコンパスの作り方
how to make a compass at home DIY-AJ's INFINITY CREATION
【折り紙】羅針盤【origami】Compass
How to make a simple compass? The floating compass, magnetic bearing.
Floating Needle and Make a Simple Compass - Homemade Experiment