Ceiling Net: Alimtois Car Ceiling Storage Net SUV Ceiling Net Pocket with Upgrad Double Head Zipper-Prevent Falling Design for Put Quilt/Light Items/Children's Tow https://www.amazon.com/dp/B08HZ2Y5DS/ref=cm_sw_r_cp_apip_B95aezfUsy3sX
Water bottle holder: https://tacticaltracks.com/products/2018-crosstrek-impreza-bottle-holder-lite/
It’s this: Alimtois Car Ceiling Storage Net SUV Ceiling Net Pocket with Upgrad Double Head Zipper-Prevent Falling Design for Put Quilt/Light Items/Children's Tow https://www.amazon.com/dp/B08HZ2Y5DS/ref=cm_sw_r_cp_apip_Qk4YD6i87abqk
i have this ceiling net and I really like it. Very useful. It does take some adjusting the first few times to get the tension and positioning just right, but after that it’s great: https://smile.amazon.com/gp/product/B08HZ2Y5DS/
I have this fan. The suction cup fits perfectly in, and actually stays stuck to, the little tiny windows behind the passenger doors. Like the cargo net above, takes some adjustments to figure out the best placement, but it works great: https://smile.amazon.com/gp/product/B07TBF4HDN
I have a RAVpower 30,000 mAh battery pack that takes USB-C PD input (charges from empty to full in 3 hours with a 90w GaN charger. the pack has two USB-A ports and a 3-prong electrical outlet that you can plug a lamp/fan/etc into. This thing is a beast, heavy and chunky, but it’ll run both the fan (which has its own rechargeable battery) and the small LED lantern i use for over a week when I only use them at night. If I’m not using the pack for camping, it charges my aging iPhone 7 and/or my aging iPad Pro 9.7” multiple times before needing a refill itself.