A small blue travel toothbrush with a zag in its neck. Its front bristles are smooshed. It probably fit the entire width of the tube.
https://cdn.masto.host/glammrus/media_attachments/files/109/133/895/815/950/913/original/2077bcf17d63318e.jpg
So if anyone got invested in my vacuum saga, this diagram was quite helpful! I found this toothbrush from a travel kit that's probably been in there for a while actually but then it sucked up a nickel which caught it and brought things to a standstill. Circled where I found it.
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