There were an awful lot of pointless props last series - Matt's swing, Gavin's rugby ball, Scott's cauldron, Pamela's desks - to name but a few. Kara & Artem largely used props to enhance the dance - the chair in the tango, the hatstand in the AT, even the scarf in the foxtrot all worked well. But even they did some pointless thing with a pair of sun-glasses at the beginning of their jive. Why?
Other props that worked well were Scott's jive door and Jimi's Charleston windows.
So, this series, God save us from glittery bales of hay, wellington boots and unicycles (Aliona surely did love those old props, didn't she?).