Ok, so I made a rainbow from royal icing that needs to dry by tomorrow! Its already been out for 24 hours and has still not hardened all the way. I have heard of people putting their decorations in the oven etc. to help them dry faster. Is this true? Is there anything else I can do? help please!

You can put it in your oven with just the oven light on or you could put it in front of a fan. If you put it in front of a fan make sure the fan is not blowing so strongly that it ends up blowing it off the table and breaking it. I have always used the oven method and had it worked well for me. Give it a try!
evelyn

Hmm, interesting. I never heard of putting them in the oven. And I've always been hesitant to use a fan - seems like that might blow dust on my cookies!

How long do you leave them in the oven with the light on?

AI have just finished a royal icing course and was told to place in front of a bright move able desk lamp until the icing crusts over will speed up drying process. It did work x

Sorry marya92 but for some reason I did not see that you needed and answer until today.  Depending what I have made, such as flowers with thicker bases, I will leave them in for 2 or 3 days.  The bulb in the oven does not use much electricity so I find this is the easiest way to dry them.  Like I said though, be sure to put a sticky not over the oven control.

evelyn