here is a laugh for you..
I painted Ben's room last week-- I had a whole basket of laundry from his room. I dumped the whole load in.. when I was transferring it to the dryer ..something fell out... the roll of masking tape I had been using to tape off his woodwork! Julie saw it and said "why are you washing tape" all I heard was "Washi tape"..I thought hmmm maybe??
I set it to dry.. sure enough it is now soft like washi tape and the sticky is 1/2 gone.
Homemade washy tape