Here's what we found

MARBLE
made us think to
WHEEL
(it turns too).
And
WHEEL
to
MOTORBIKE
And then...
CROSS
EARTH
MUD
UGH
CAULIFLOWER
(Camille doesn't like)
LETUCE
(it grows in the garden too)
SNAIL
(they do like letuce)
SLIME
STICKY
...