I used a dawn dish soap bottle when I was synchronizing the 4-bank on my brother's Suzuki GS650. The "nipple" on the lid was perfect for attaching some rubber tubing.
Day gives way to night on the store front mannequins. The audience with Mona Lisa grins.
Moonlight builds emotion as the players scuttle in. Pull the curtain back and let the show begin.
Lunar mischief under low light discipline. Here the tiny monsters hunt the harlequins.