So I had a little idea dunno how realistic it is but, there is a pickaxe and a hatchet in game both utilizing his without needing the relivent Pokemon. My idea was to make more items like such already in game so a scuba gear so players could dive without the friendship, some rock climbing boots. Again self explanatory. A flashlight for flash. Waterfall is maybe abit trickier but these items are all items you could price are 75c like the existing items and could also make people want coin items more in turn boosting sales. Again this is a 2am spurof the moment thought but I hope it's something you could consider.