Hi MG,
Great gal, and WOW she's tall.
A few ideas:
1. Bring back the pudding tub/bin, I would love to see this really tall lady try to squeeze herself into it HA!
2. If it was a two girl scene or more, she could tower over the shorter models and get them messy/muddy/painted to her hearts content, but they are unable to reach up high enough to really get her messy. So while she laughs at them they get a step stool and then step up high enough to mess up her boobs, face, head etc.
3. She's really tall you could have her as a ballerina or gymnast or yoga doing her routine or exercises, but doing it in a messy way like with pies, pudding, in the mud (MessyFun had Mud Aerobics!) or even paint.
4. Since she's an Aussie, maybe have her dressed up in safari/outback gear like she's going into the outback and she falls into a mud pit or pudding pit (doubling as mud) and it turns out to be deadly australian quicksand and it sucks her down. I love when they do the gag with the girl wearing a hat and she sinks right under leaving her hat floating on the surface!.