Quantity   Component name
12 × 0603 led LED of various colors. Since there are 4 different nucleobases, plus 2 "new" created by made scientists, choose 4 or 6 colors.
24 × 0603 resistor see description for values
1 × Solder paste Get solder paste, not flux
1 × 1.5mm² copper wire (AWG 15 or 16) you'll need less then 1 meter
1 × power connector
1 × 9V wall adapter Lower voltage may suit, depending on your leds
1 × 8mm aluminium round bar or tube not mandatory for flower shaped lamps
1 × Polyimide ("kapton") adhesive tape 5mm or 10mm wide. Double sided would probably be great if available.