Why is there a crashed space capsule in Winganon, Oklahoma?

In the late 1950s, a truck carrying a cement mixer crashed on E300 Road between Talala and Winganon, Oklahoma. Apparently too heavy for anyone to deal with, the mixer sat for decades where it was occasionally graffitied or whimsically decorated. In 2011, artists Heather and Barry Thomas celebrated their wedding anniversary by transforming the drum mixer into a space capsule. It's now a popular roadside attraction for curious travelers, terrestrial or otherwise.

Winganon Space Capsule (via MAKE)