So I did. They made the small one quite happy. The crosses weren't quite as defined as I'd expected but some of this was because I had to use a freezer bag for piping the paste on rather than the piping bag suggested.
The recipe came from the free Sainsbury's magazine and made 20 buns. I used Vege-gel rather than gelatine. I'd up the cinnamon next time. Otherwise, they were great.