We wanted to name our RV, but what to name it? It came to me in a flash!
All of our electronics in our RV are named after Norse Mythology. My computer is Fenris, the wifi network is Yggdrassil. We have Valkyrie, Heimdall, Mjolnir, and Loki. There was at a time Asgard as well, plus some others. I think we had a computer named Baldur at one time. So obviously, the RV needed a Norse name as well.
That lead to modes of transportation. What is there in Norse Mythology that involves travel? Well, in my limited knowledge, I knew of only one thing: Odin rides an eight-legged horse named Sleipnir. It fits, it makes sense, and if I can do it, its probably available as a custom license plate. So there we have it!