Like the textures from the texture packs arranged into a tilesheet? I can certainly do tilsheet versions of things, though I'd have to scale everything to the appropriate tile size for RPG Maker (Depending on which version [xp, vx, mv, mz, etc.])
If you're referring to my isometric tilesets, sadly those don't really work so great in RPG Maker's standard map grid.. Since the tiles need to be placed in a staggered isometric grid, they won't properly line up with one another even if they are imported as a tilesheet