Two Northland artists have admitted giving some Whangarei District Council bollards a sneaky Hundertwasser-style makeover. But the guilty parties are unrepentent, after H-bombing six bollards in the Town Basin. Glenda Ferguson and Heather Carthew also admit to being "geri-rebels". They says their senior citizen status hasn't stopped them having a great time giving the bollards outside The Bach an unauthorised makeover.