Christmas cracker as rival varieties came on the market. The other elements of the modern cracker—the gifts, paper hats and varied designs—were all introduced by Tom Smith's son, Walter Smith, to differentiate his product from the rival cracker manufacturers which had suddenly sprung up. Tom Smith merged with Caley Crackers in 1953. A memorial water fountain to Tom Smith and his family stands in Finsbury Square, London. The longest Christmas cracker pulling chain consisted of 1081 people and was achieved by The Harrodian School in Barnes, London, UK, on 10 December 2015. Passengers on commercial flights in the United States are explicitly
Wedding Cake Rock to the landmark to take pictures on top of it, often while performing a stunt. The spike in popularity became concerning for the NPWS, whose regional manager, Gary Dunnett, questioned, "whether having 30 or 40 people standing on that area has the potential to tip it one way or the other". The site was closed off in May 2015, citing the aforementioned safety concerns. After the closure, a geotechnical assessment and evaluation of Wedding Cake Rock was conducted to determine the stability of the landmark. The study found, to the NPWS' surprise, that the formation was not only unstable, but