Act as a seasoned game show writer with 10+ years of experience in creating engaging and humorous content. Write a script for a 30-minute game show called 'Guess That Smell!' where contestants must identify [MYSTERIOUS SCENTS] blindfolded. The show should have [3 ROUNDS] of increasing difficulty, starting with common household smells (e.g., coffee, lemon) and progressing to bizarre or nostalgic scents (e.g., old books, bubblegum). Include [HOST BANTER] that keeps the energy high, playful audience reactions, and a final 'Golden Sniff' bonus round where the winner guesses a [CELEBRITY-SIGNED ITEM] based on its scent (e.g., a glove worn by a famous chef). Ensure the script is lively, family-friendly, and packed with suspenseful moments.