you can go to a local harbor freight store and get a apache waterproof case for cheap. it has pick out soft foam and works great. mine holds my tello without prop guards attached, lower layer has charger and 2 batteries, then top layer has tello and a skinny 4,000 mah power bank.
i have a bigger Apache waterproof box that used to hold a Yuneec Breeze but now is just collecting dust, with hopefully soon a wifi repeater(s) and some more extra batteries and accessories, ill buy new foam and make the bigger case into my tello platform case, it may be overkill, but waterproof crush proof cases are nice to have
As menitoned in the FB forum it depends what you want to do.
Keep everything neat and tidy for a walk to the park, great: The cheapest solution on the chinese market should do OK.
But if you want to travel requirements are different. You want a tough shell with a shock absorbing inlay. You will not want any accessories in the same compartment as Tello. I still have one of my birds grounded due to this (battery worked lose, ended up on top of one motor, then everything got squeezed and pushed and I had a broken motor. I was lucky that the battery wasn't punctured).
Now I just use a Hello Kitty box with foam insert for the drone, so small I take off the props and keep everything else separately. Lipos go into a Lipo bag for travelling. Even small ones can be nasty:
Okay. Thank you for the info. I already ordered a Tello specific case off of Amazon, but when I get my next drone (whenever that may be) I'll have to stop at Harbor Freight and pick up one of those cases!