argh, wish I'd seen them in a supermarket up here Charlie, I'm always collecting interesting tins.....
There are loads of bundt recipes here...I find a really good speialist greasing product for shaped tins invaluable as opposed to greasing or greasing and flouring normally. I use an American product I get in UK called Wilton Cake Release. Its very good. I make loads of cakes in decorative tins, and have rarely had a problem with a recipe not desiged for them. Remeber to go for something that doesn't need icing though, lol. Glazes work beautifully to highlight the shape. VB's Caramel Apple cake here in the Baking section is superb in a decortaive tin. I like to make lemon cakes in rose tins and glaze with lemon glaze and a little rose syrup, and some crushed pistachios....lemon and rose screams turkish delight, and is a lovely combination.
ETA: I also use them to make oher things like jellys and breads etc. Yesterday we had a flower shaped spanish Cream that was lovely.
In omnibus amor et iustum