Socialite Pippa Middleton, younger sister of the Duchess of Cambridge, is encouraging parents to hold ‘Casino Night Parties’ for their teenage children. The 29-year-old is promoting gambling events aimed at teenagers with products supplied by her family’s firm, Party Pieces, reports femalefirst. Writing on her website, Party Times, which is part of Michael and Carole Middleton’s Party Pieces business, Pippa said: “(Casino Nights) are a great choice for teenagers. Dress the table in baize green, dust off your packs of cards and mix up the cocktails – then all you have to worry about is whether Lady Luck is on your side.”