easy..wood

wood

shale stone?

yes, wood............thanx!............

Watermelon

Ground beef (not lean)

POPCORN

Frozen meat ?

you got it kyricom and beardedworm.... it is lean however 95% lean beef

mince

Chocolate cake?...

brownie?

nope!

sponge bath ??????

lol close

looks like toast with butter on the other side

pumice stone?

Seaweed?

filter foam?

Looks like fish, or frog's eggs

Is it a bowl with kiwi inside?

Mold in the bottom of a glass/cup?

It was actually the first guess my sons fish bowl with frog eggs thank you for your guesses

Maybe an old bathtub left outside? (could use a high res, please)

A hole for a pipe coming out of an old house?

yes, an old bathtub find outside!