Flavoured sugars.

I'm planning on making some rose scented sugar as soon as the rosa rugosa is flowering in my neighbourhood.  It always smells absolutely heavenly and I hope that some of the fragrance will infuse into the sugar.  Lavender is fabulous for making lavender sugar.  Just add a load of the flowers into a jar filled with sugar. Leave it for a couple of weeks and remember to shake it a couple of times a week so that the flavour and fragrance infuses all the sugar in the jar.  I have used lemon and orange zest in exactly the same way.  Take fine shreds of the zest and pop it into a jar of sugar.  The flavour is lovely after a couple of weeks and don't sieve it out as the shreds of zest are a nice addition to porridge or cakes. Has anyone tried elderflower and lemon sugar?  I might have to give it a try and see how it turns out.