Release Troegs 2019 Mad Elf ! Plus Troegs Vintage Mad Elf, Troegs Blizzard of Hops & Dream Weaver! Photo booth. A portion of the sales of Mad Elf during event will go to Philadelphia Ronald McDonald House. Bring a new, unwrapped toy for Philadelphia Ronald McDonald House & you’ll be entered in a raffle to win a prize. Guest appearance by Real Philly Santa!