I'll try to create one using best 18 under 22 with one from each club. I used the best 22 under 22 formula the AFL uses. To be eligible for selection, players must be aged 22 or under for the entire AFL season (including finals).
B: Hartung (Haw), Lever (Ade), McDonald (NM)
HB: Yeo (WCE), Andrews (BL), Kolodjashnij (GCS)
C: L.Weller (Fre), Cripps (Carl), Ellis (Rich)
HF: Bontempelli (WBD), Hogan (Mel), Cockatoo (Cats)
F: Billings (St.K) Daniher (Ess) McCarthy (GWS)
R: Grundy (Col), Wines (Port), Heeney (Syd)
B: Hartung (Haw), Lever (Ade), McDonald (NM)
HB: Yeo (WCE), Andrews (BL), Kolodjashnij (GCS)
C: L.Weller (Fre), Cripps (Carl), Ellis (Rich)
HF: Bontempelli (WBD), Hogan (Mel), Cockatoo (Cats)
F: Billings (St.K) Daniher (Ess) McCarthy (GWS)
R: Grundy (Col), Wines (Port), Heeney (Syd)