Before I had a dry cabinet, I used to use the largest Lock-and-Lock box and silica gel. When the silica gel turned pink, I would fry it to remove the moisture (blue color), cool it, and put it back into the box.
After that, I found a wireless dehumidifier for about $20 at Home Fix-It shop. It also uses silica gel, but has a heating element inside it, and when the silica gel turns pink, just plug it into a wall socket, and the heating element would heat up the silica gel and the whole unit gets re-used.
I find the wireless dehumidifier a really good solution.
I don't know about Thirsty Hippo because the water gets trapped at the bottom of the Thirsty Hippo container. Not sure how that affects overall dryness inside the box.