Hi everyone,
I'm new here so this is my first post (from the U.S. - Texas), but I wanted to mention another option for a sponge stuck in an inconvenient place lol. I recently found myself in this very situation, with no insurance and facing the possibility of a big emergency room bill.
I started thinking what would happen if I did go to an emergency room -- how a doctor / nurse would handle the removal. And I figured they'd have to use some sort of forceps-like instrument. Then I thought, well . . . I have some metal tongs, the kind you use when you cook wieners in hot water. SOOOOOOOO . . . I went to the kitchen and rattled around in the drawer until I found them. Then I washed them in anti-bacterial soap and splashed them with rubbing alcohol then dried them off with a paper towel.
Then . . . I drew a big breath and lay back on the bed. You can guess the rest lol. I've actually done this in two different situations. The trick is to insert the tongs closed, then when they're up in there, open them, move in a little farther and do the grab! Works like a charm.
Hope this helps somebody!