So, I ran into this panel on a search some months ago, and got curious about the context. So I tried a Google search. Big mistake. There exist a completely different assortment of Marvel vibrators apparently. Reverse image searches didn't give me anything to work from, nor did attempts to restrict the breadth of the search.
Does anyone know what issue this comes from, and what the plotline was that explains why Captain Marvel has to ride a vibrating mechanical horse?