Aegis Park played host to some stars of the future on Wednesday at the annual Harvey's Heroes Clinic.

While Boomer was the star attraction for more than 900 eager North Melbourne fanatics, there were plenty of other popular Kangaroos with Andrew Swallow, Jack Ziebell and Brady Rawlings all crowd-favourites.

Kicking, handballing and goal-kicking were all on the agenda, but it was the tackling and bumping bags that proved most challenging.

Join in the Chorus bellowed out of the speakers as the youngsters moved around the different activities. The rain held off just long enough for every one to enjoy a sausage sizzle and get an autograph.

With the clinic over and some happy children leaving with smiling faces, the players had their own training session to get through as part of their preparations for the clash against Collingwood.