Victreebel and Gigalith
It was recently discovered that rock from a Gigalith's spikes can distill the stomach acid of a Victreebel. With this new knowledge, Gigalith rock has been introduced into heartburn supplements.
I like to make pokémon that have moves and abilities that reflect in-game mechanics. Take counter for example, the damage done is doubled but only if the pokémon doesn't faint from the damage. Of course the glass-cannon has powerful moves, but they backfire and allow for more damage to be done...
So Grookey is definitely groove+monkey especially since the first thing it did was use its head stick as a make shift drumstick.
Scorbunny is scorch+bunny very simple
Sobble is probably salamander+bubble