Whips out the good old sharpie
Which has actually been used before! I remember in a VEX video Karthik said they sharpied the black bonus balls in Bridge Battle because the competition was small enough.
I have been putting gel super glue onto the seam where the balls are splitting and then letting them completely dry before use. … I did this to a few new ones before put into use and I have not had any bust open yet… the older busted open ones are also staying sealed for now but doing them before they bust makes it easier to maintain the original shape of the element…