I like to browse around other girls' photos and videos for inspiration.
There are SO many ways to get creative, especially if you're not working with a limited space. Looks like you shoot a lot in this adult store or something, right? If you have access to any of the merchandise, you should definitely do that. Model different shoes or outfits, strapons, restraints, etc. For videos, you could make an instructional video with some toy or something. Can even do that with stuff you already own. Just off the top of my head, here's some stuff you could do in pictures and video that you might not have thought of: body writing, pantyhose, silk panties, corsets, layered hosiery, schoolgirl, dominatrix, giantess (shoot everything from a super low angle) drinking, outdoor flashing, toe rings, foot massage, toenail painting, 'getting ready/behind the scenes', toys, JOI/SPH video, shower, jeans, tickling, balloons, smoking, rubber gloves, wet look, WAM, rope bondage, duct tape, ball gag, workout. Check out the 'fetishes' section for more ideas