If you are a cake decorator then you know one of the early skills you need to master is piping scrollwork. Not only do you need to have a steady hand to make the scrollwork smooth, but you also have to apply it to the cake straight and even. A few years ago I decided to start using a laser level to help me when piping scrollwork. Here’s a video of how I use it, along with some Wilton scroll presses, to get a nice evenly piped scroll on my cakes.
It works great for other things too. I think the first cake I used a laser level on was this Luis Vuitton purse cake. It really helped me keep the LV pattern straight.