That sounds epic, a little rain catcher that plays a splash song. Start with a solid rectangular base, stack a few translucent bricks to make a channel, then add a little notch so the water actually hits a spot and echoes. Keep a spare brick handy – you never know when a drop will crack the base. Mix some bright blue with a gray to make the water look glassy, and prototype with a single drop first. Then tweak the height until it sings just right. You got this!