tie it in with:
Shea's
Irish classical
Studio Arena
Albright Knox
Music Hall
Delaware Park and Shakespeare festival
Forest Lawn
Buffalo Zoo
Downtown City Center area (link it with the metro rail, maybe proivde a free metro rail pass as well).
Elmwood village shopping and restaurants
maybe take a special run 3-4 time a day to the Botanical Gardens and South Park
ADVERTISE THE OBSERVATION DECK at City Hall, which is FREE and open during City Hall hrs
That would be a heck of a weekend...
and it wouldn't cost much, comparatively
Unique, fun, something for everyone.