I am interested. I have a cheap set for Brittney's library.
As a side note, don't mind my lazy boy and cardboard box soldering station, haha.
I picked up a cheap remote controlled 24 foot set from lowes, they were branded Bell and Howell but I'd imagine any other set will be similar. The issues I had were that the IR reciever and connection for the light strip were too short for where I needed to mount the controller and the USB plug and an associated power strip would take up too much space for where I needed to mount the controller.
I disassembled the controller box and noticed the board took up very little space and wasn't attached to anything in there, lots of extra space in the little box for changes. In the pic, upper left is the IR reciever, lower left is RGB strip output, right is 5v usb input.
I dug around in my box of scrap wire and found a pair of leds and associated control harness from some accent lights someone gave me, they had the correct number of conductors and were terminated in some pretty decent little connectors, so I robbed those connectors and associated 6 ish feet of wire and soldered them in place of the reciever input and light output
The 120 volt wall wart that was included with the kit had a 5v output of 2000ma or 2 amps, I found a 12v usb adapter with an output of 2.4A disassembled it, removed the USB ports, soldered a couple wires in place of them and added a couple wires as extension for the 12v then I trimmed the standoffs off of the inside of the enclosure and secured the main led controller to the top of it using a bit of hot glue, once that cooled I put in a bit more glue to be used to separate the two boards and secured the power supply board in a similar fashion as the other one. For some odd reason I didn't take any pics of this process but it's pretty straight forward. Below is the finished product.
Then I used the wire that includes the mating plugs to those connectors and made an extension, I just soldered and heat shrunk the wires then loomed them all up after a functional test. Hopefully that all makes sense.