Lottery officials will unveil their new BBQ Bucks scratch-off tickets Tuesday at Clyde Cooper’s Barbecue in downtown Raleigh and at Queen City Q in Charlotte. The $2 scratch-and-sniff tickets will bring a chance to win up to $25,000 and to enter a secondary drawing for one of 10 prizes of 100 pounds of pork and a Big Green Egg to grill it on.