You have a fridge or metal door and need a pen. This one is always there! No glue necessary! (but optional!)
Step 1: Find Bic "Stic" Pen
Standard pen. found in junk drawers all over the country.
Step 2: Get Magnet(s)
rare earth magnets from Harbor Freight. 10 for a buck fifty.
Step 3: De-cap Pen and Place Magnet
Put magnet in cap. Fits nicely.
Step 4: Replace Cap on Pen
Pretty much put cap on pen bottom end.
Not point end.
Step 5: AH HA! GENIUS! IT WORKS!
No glue needed but you can super glue the cap in place for a firm fix.