FMM Press Ice Polka 2

This Press Ice Polka 2 tool by FMM is a versatile tool to help you mark dots that are perfectly spaced 7mm apart (close-spacing) and the grid measures 100mm x 60mm. With the dots laid out, you now have a perfect grid to pipe pearls of royal icing. You can also place edible pearls to give it a elegant look. Contains full instructions

Instructions
Carefully press the tool into the cake side - you must do this when you have just covered the cake and before the sugarpaste has started to skin to prevent cracking. In the case of a round cake gently roll the tool around the cake side. Once you have made one impression remove the tool and position the first row of pins into the last row on the embossed pattern and repeat until you reach your starting point.

This now gives you a perfect grid to pipe pearls of royal icing. You could also use dragees for a glitzy loo