In advance: Make gum paste carnations per linked technique.
Bake and cool 2 in. high sheet cake using firm-textured batter like pound cake. Cut cakes using smallest round cookie cutter as cutting guide. Set cakes on cooling grid over drip pan. Cover with melted candy; chill until firm.
Tint fondant and roll out 1/8 in. thick. Cut 2 x 7 in. strips but do not lift. Cut and remove dots using narrow end of tip 2A. Lift strips and brush backs with damp brush; wrap around petits fours and smooth seams. Attach carnation to each using dot of melted candy.
* Combine Violet with Rose and a little Royal Blue for violet shown.
* Combine Brown with Red-Red for brown shown.