Are there any examples of reusable "computers" like this? I've seen some demonstrations but they are not generic to the problem and reusable, they seem to have

Are there any examples of reusable "computers" like this? I've seen some demonstrations but they are not generic to the problem and reusable, they seem to have the data encoded in the makeup of the "computer" itself. I write computers in quotation marks because even if they solve computational problems they are so different from what we are calling computers today, eg: mold growing in a maze and similar.