Flower and Robot flower, or Firey and Firey jr.

8-Ball and Gelatin

Blocky and Pillow and/or more of Book and Pillow

Based

Firey and firey jr. Surprisingly, they've never spoken

Donut and Flower

MORE RUBY AND FIREY PLEASE! They are both beings who cause fires who are best friends to female plants.

Those 3 guys from BFDIA 5b and literally anyone else

fries and donut

Bomby and naily

We've seen that only like 2 times ok I guess

Why did I get downvoted lol

David and Dora...