When I go up on the roof to fix the AC I usually forget a tool
wood or metal 1" x 1" x 1"
super glue or TIG
tool bits (harbor freight $2.97 for 6)
cut wood to desired size ~ 1" x 1"
I used wood because I haven't taken the TIG class yet, but you can do these same steps with metal (use abrasive saw or horizontal band saw instead of a miter saw)
Sand wood remove splinters created by cutting (for metal use a file).
measure size of each tool to determine appropriate bit size (tool shank size may vary).
drill holes in cube to fit tool shanks
super glue tools in holes or TIG tools if using a metal cube
I made it at TechShop