Whistle A- Original whistle, discontinued because of choking hazzard. USA
Whistle B- Safer model with huge square base to prevent swallowing. With Label.
Whistle C- Same as WHISTLE B with Canadian Flag on one side of the label.
Whistle D- Same as WHISTLE B with SuperBowl 30 on the label.
Whistle E- New streamlined orange model with label.(Squared rear wheel wells, 'Made in China' on left side under window)
Whistle F- SuperBowl 31, red plastic with label
- Darker orange with label.('Made in China' on right side under window) This model came with instructions. 1997-98
Whistle H- Current model, darker orange with label. Doesn't sound as good as Whistle G. ('Made in China' on left side under window) 1998
Whistle H- Clear, glow in the dark whistle. 1998
Whistle G
Whistle I
Whistle W2