I bought an LED chimney / Santa motif from OO. It has 3 channels (one for the chimney & body and two for the leg pairs) and comes with a 24Vac plugpack and MFC. After cutting the MFC off, I wired the 3 plugs to a 4-core cable that runs back to one of my controller cabinets. As per some of the other motif mods I’ve done (like the LED Stars), I used 2 x 1N4001 in series with the common +ve wire to drop the 30V down to about 28.5V so it’s close to the original brightness. Here it is mounted up on the roof.
I cut 2 lengths of 20mm PVC electrical conduit and cable tied them to the main frame and stand. The conduit pieces are 1500mm each, but a little longer wouldn’t hurt.
I found that a spread of one tile between the frame and stand allowed the motif to stand fairly vertical.
Medium thickness cable ties are attached to the conduits in several places. Make sure you don’t tie around the LED rope light itself though. The uncut tails of the cable ties are wedged under the tiles in several places. A large flat blade screwdriver was used to carefully left each tile up to slip the cable tie under. I started with 200mm ties, but also used some 300mm ones to go further under each tile.
Update 2020:
After seeing a post on the ACL forum about using heat shrink covered metal strips for prop mounts, I bent these joining plates (from Bunnings). The heat shrink minimises scratching of the tiles and also gives the underside of the tile something to bite into.
I cut off the old large zip ties and used 4 of the new brackets.
The plan was to tap a screw through a hole in the bracket and into the conduit, but the fit is pretty snug so I didn’t worry about it.
The cable is still held in place by large zip ties tucked under the tiles in a few places. This stops the cable from flapping about in the wind.