Here is what you will need for this project.
A tree is a good start. :)
Celebright LED Holiday Lights
in Blue, White and Muliticolor
3 Female DC Wire Plugs
3 LED Adapter Slice Cables
12W 12V Adapter
Each Celebright strand has a DC plug on it. A DC connection is just a plug in version of a positive (+) and negative (-) connection. The LED Adapter Slice Cable
is going to convert from that plug-in setting to a "Hard Wire" setting.
Once plugged in to all three Celebright strands you will have 6 splice connections available to use.