At time mark 20:11 of ep.10 in Miss Kobayashi's Dragon Maid, Tohru gives to her a Christmas present to help with back pain. She opens the present, which is apparently some sort of living creature from Tohru's world which must be ground up before use. However, the anime on both Crunchyroll and Funimation censor it with a heavily pixelated effect.
What is it? My research shows this is an anime original episode, so I guess the manga would be no help. I've checked other forums where this question has been asked, but I did not find an answer.