Sometimes players do something wholly unexpected. This happened in a game last year where the party were adventuring in Phlegethos the 4th layer of Hell but suddenly made an unexpected move that teleported them to Mount Celestia an altogether different landscape.
this made me scramble to create a full gaming board for Mount Celestia using some foamboards I burned some tiles into. Painted with a golden marker and added some cotton.
and voila! Mount Celestia was ready.
Eventhough this was a really rushed gaming board, I love the finished result. In fact, the piece I spent most time on, the rainbow bridge, is the only piece I am not entirely happy with.