How can I remove hardened playdough from sole of shoes?

[Wolfgirl]

Any ideas? I have some fab boys Timberland open toe sandals for sale, prob put them on eBay, but they have blimmin playdough caked on the soles. any ideas how to get rid and make them look nice for selling? xxx

could soak the soles in shallow dish of warm water, then it would soften and you could scrape off