When I changed the oil for the first time, I was kinda surprised that my Cross Roads didn't have a magnetic drain plug. Once the oil was out, it was too late to do anything about it.
Today, I was in Hobby Lobby and came across these magnets. Not sure if they are rare earth magnets, but they are quite strong.
Three magnets for $4.99 and I had a 40% off coupon, so they are $1.00 each. They are about 10mm in diameter and 3mm thick - 3/8" x 1/8" for you H-D guys ;-p
I stuck one on the outside of the drain plug. It held pretty tight. Unless something hits it just right, I doubt that it will come off easily. When I change my oil next time, I can just slide it to one side to gain access to the hex key slot.
The photo of the magnets and the quarter shows their size. It also shows that these magnets would not get any closer together. If I moved one, the other two moved away.
FYI... don't get your finger between two of the magnets when they jump toward one another - kinda smarts. DAMHIKT!