Irish Whistles that marketing departments are working on:
1) The Irish Pooka Seekers Serenading Vuvuzela Whistle (plays all keys at once)
2) The Dublin Pub Crawler's Saturday Night Jawbreaker Stainless Steel Whistle in Dangerous A (buy two and get 5% off your next dental visit)
3) Paddy O'Leprechaun's Brass Invader-Fighting shillelagh Whistle with adapted concertina handle and electric rat stunner
4) The Irish Priest's Classroom Brutalizer Hickory Whistle inscribed with things the police call "G Sharp minor abuse"
5) The Pink Irish Banshee Screecher Whistle ($3.99, also comes in pastel white and corporate faded grey)
6) The "Cork To Derry Bike Ride For Charity" Race Official's Whistle with lanyard and zebra stripes (key of high G)
7) The Irish Mermaid's Water-powered Whistle in the key of K (a cross between C and Khelp, an ancient madrigal mode).

The Dullahan Itinerant Drifter Whistle with uilleann air pump attachment (popular in low D)
9) The Hooligan's World Cup Whistle with injury-faking attachment and converts to be a secret beer straw
10) Magdalene's Revenge Whistle, plays only on the high road, is chromatic and often the heart of small business skiffle groups