Bro 100% agree with sniffer b/c most all the others besides the potion have uses but the sniffer which is a hard to find mob literally only has the purpose of giving 2 very build-specific flowers.
So the Lingering Potion of Water does basically nothing, and the bat does nothing useful, not even XP. Shrub and Tall Fern also is just decorative, and the clock is just a worse version of your eyes moving up to the sky for 2 seconds