Perler Bead fireflower from Super Mario. You could do shades of blue with the same pattern for the ice flower.
This pattern for a Nintendo fireflower could also be used to make an iceflower sprite. Two or three shades of blue instead of the red, yellow and orange. It’s two patterns for the price of one.
You might also like this 8-bit Mario Perler Bead pattern. Of course you can’t have a Mario with out an evil Goomba to go along side, so check that pattern out too.