Thinking of getting some of these for a party - has anyone usedvthem before? Do they stain really badly? Is the mess easy to clean? [[https://www.partypacks.co.uk/mobile/powder-paint-cannon-6-assorted-colours-30cm-each-pid103560.html?gclid=Cj0KCQjwquTbBRCSARIsADzW88xaCmoDfV0UG3TLfZUcwh7czx_xUlKFMTJjVwlFvil585CIgZBlHJYaAvmmEALw_wcB]]