JY, you have a very difficult problem which RGBW or Digital tape probably won't solve dependant on the not mentioned scale of the spoke length. Assuming a 30" spoke length, one might assume at best a 1" dia. spoke length would be the absolute maximum diameter of a spoke dia.. That's a little small in OD for
LED tape to wrap around or go parallel to, but can work with in parallel.
If the center of the tape were applied to the spokes, the rest in width of tape not wrapping but parallel /linearly to the 1" pipe was silicon ed or hot glued to the support, you would have something that might work. A lot of soldering in inital thoughts.
If you have the engineering brain, the time, money and labor... You could possibly with smaller say 3/4" tubing size engineer a
node type of snowflake. This will be very labor intensive. Nodes and or diodes,
RGB (possibly digitital but I don't think yet) are getting more powerful and smaller in size. I have a few R&D'd with that are small but not bright enough. Size of
power, verses size in
fitting I have seen.
Once made a Trident for some Disney Princess
play, a
LED microphone stand for a band, and in general
LED bars for anther band way too frequently amongst other projects like
LED gernades at the core of balloons and other globes.
Modern programmable X-Mass lighting wrapped about a spoke - even down to 1/4" shaft of it I think far superiour in scale and time spent. Pre-program the light string before it
flies. This verses buying individual nodes, drilling at least 3/4" polycarbonate tubing for the nodes bought, and stringering them for
chase in each pre-configured
node. Than dealing with the wiring harness
etc... a nightmare I'm currently dealing with in some huge flown
LED tape digital tape cubes. This would be a though
build in either case. I recommend the commercially programmable light stings for which choice you want to repete. Wrap it about some threaded rod, and go home at night.