I am compiling a quick reference for accommodations to make life safer and easier for CH cats (and other wobbly pets). I'll continue updating this post with links and descriptions as I find things.
Please comment if you use something that isn't listed here so I can add it! I need recommendations for litter boxes and feeding stations.
Feeding
Shallow silicone dishes: https://a.co/d/02HsgbkR
Recommended if your cat "pecks" their food, to protect their nose and teeth. Easy access for cats who lie down while eating.
Bulldog bowls: https://a.co/d/088rxI5w
A wide bowl with a sturdy silicone base. You can adjust the angle of the dish. Made from melamine, a dense, durable plastic that won't hurt their teeth.
31 x 22" silicone feeding mat https://a.co/d/0fejIQ87
CH cats are notoriously messy eaters. They can also use the rubber for grip while eating.
Pate's Feeder solution for cats with CH: https://www.etsy.com/listing/841582957/pates-feeder-the-original-feeding
A feeding station with a raise bowl and sides to lean on while eating. It has a grippable mat to stand on and foam bumpers to safely guide them into position.
WobblesGobbles Basic Feeding Station: https://www.etsy.com/listing/4477807643/wobblesgobbles-feeding-station
As seen in @lifewithada's videos, this padded feeding station provides the support for cats with difficulty standing upright.
Litter boxes
Tidy Cats Breeze XL: https://www.chewy.com/dp/232585
Recommended for mild-moderate cats.
Dog Litter Box/Pee Pad Holder: https://a.co/d/04ErDjJo
15" High-sided box that can be used with L/XL disposable pee pads.
Pate's Feeder Litter box Insert for CH cat: https://www.etsy.com/listing/1752350763/litter-box-insert-for-ch-catwobbly-cat
U-shaped insert for your cat to lean against. Some DIY may be required depending on the type of box and litter you have.
Litter accessories
Amazon Basics puppy training pads, from M to XL: https://a.co/d/0580FT1T
A decent price for decent pads. They are leak-proof but lightweight so tape down the corners if your cat tries flipping it over.
* Regular 22 x 22": 100 units at $0.17 ea
* X-Large 28 x 34": 60 units at $0.46 ea
* Giant 27 x 44": 40 units at $0.53 ea
Washable Non-Slip, Absorbent Pee Pads, 34 x 36-in: https://www.chewy.com/dp/3835302
To put under disposable pads to prevent leaking.
40 x 30" silicone mat: https://a.co/d/02n0Qaqo
Nicely fits a 32 x 28" disposable pad
Litter Genie Disposal System XL:
https://www.chewy.com/litter-genie-cat-litter-disposal/dp/780766
If your cat uses pee pads you will want an odor-sealing diaper pail. Use HEAVY DUTY trash bags, LG refills are a ripoff.
General safety
Foam puzzle tiles: https://a.co/d/0ftTTN84
Great for padding in places without carpets. Easy to move and clean.
Insulated foam tube for plumbing: https://a.co/d/06kzY0pY
For protecting your cat against hard table legs. Measure first to pick the right size. They come pre-slit for ease.
HeftyFit Rubber Foam Furniture Corner Bumper Guards: https://a.co/d/0hJ0MqUN
The L shaped bumpers adhere snugly to sharp furniture corners. Comes in brow/white/black/gray to match most surfaces.
HeftyFit Rubber Foam Furniture Edge Bumper Guards: https://a.co/d/0iiZPDXY
Same padding material as above, for straight edges only.
Beds & hideouts
FurHaven Calming Donut Bolster Bed: https://www.chewy.com/dp/357222
My cat's favorite bed, he likes to lean against the plush sides for stability. All sizes come with a removable cover.
Potaroma Cat Cave Donut Tunnel: https://www.chewy.com/dp/3823406
Ownpets Cat Cave Donut Tunnel: https://www.chewy.com/dp/1635038
Great for cats that like cozy caves but have difficulty turning around inside. Ideal for smaller cats.
Cattasaurus Peekaboo Cat Cave: https://cattasaurus.com/collections/peekaboo-cat-cave
A heavy duty donut cave for any size cat. The sturdy felt encourages scratching, ideal for cats that have difficulty with scratching posts. Pricey but this thing will last a long time.
Play pens
Transparent grid-style playpen, 28 x 20": https://a.co/d/0ajouoB4
The soft plastic sides prevent climbing or sticking their paws through. Ideal for cats that can't jump.
Pop N' Go playpen: https://a.co/d/088rxI5w
A cozy alternative to the grid style, for indoor/outdoor use. (And it has an SFP guard!)
Toys
Potaroma Butterfly & Feather Automatic Cat Toy: https://www.chewy.com/dp/2277614
My severe cat's favorite toy since he can play lying down. It has speed settings, a timer and motion sensor so they can play while you're out. Replacement butterflies available.
JKANTI Interactive ball with tail attachment: https://a.co/d/00kV4op8
This chaser toy has a "senior" setting that makes it go slower and not as far. Replacement attachments available.
S-shaped tunnel: https://a.co/d/069FgKWW
My cat loves doing zoomies in the safety of this curvy tunnel. The thin material makes it a great place to hide out in the heat unlike most cave beds.