Using a Fan

I use a fan--and I love it! After flooding a small section of a cookie, I immediately put it on a rack in front of a fan on low. The rack is about 1-1/12 ft. away from the fan and I don't have any trouble blowing the icing off the cookies (but that did cross my mind, too!)

Since I started using the fan, I have all but eliminated those annoying craters and holes! 

Hope this helps!

Thank you, thank you!! That's just the information I needed. OK, I am going to do that from now on and hopefully those craters will be gone. 

The pinholes I'm not so sure about. :-(

I used the fan (ceiling fan) when the weather has high humidity.  Or when you want to dry your cookies faster.  I have used butane(natural gas) heater too.   I put infront of the heater the sheet and turn on the ceiling fan.  To near of the heater can burn your cookies.  Use a Little crémor tartar in wet weather it helps. If the humidity is very high you can lost your cookies.  They will melt. Bubbles can be because your royalicing is very liquid.  If royalicing dryes with a rugous look and breakes it could be because the meringe powder or egg White powder is to old, or you have used to many flavoring (put flavoring in the wáter to prepare the royalicing helps a Little.  If royalicing over your cookies looks foamy it will never dry nor with heater or fan (I experienced it once).  I usually bake my cookies and wait for a better weather.  I hope this can help you. Be careful, the royalicing could be seen as dry but it can be wet in the middle , that can make Little cracks or melt your cookie.  I usually make more cookies to taste (with your finger, so if you made a damage is only in one cookie.)

Thanks so much for that information. Yes, humidity is an issue for me. I live in South Florida. And I think for sure that my icing has been too thin on many occasions. It's something I am constantly working on - consistency! 

I just had to post an update here. I tried using a fan today for the first time. I decorated about 2 dozen cookies and as I completed each step I put them on my baking sheet, about 1-1/2 feet from my table fan, on low. 

Not a single cookie has a crater! I'm just beside myself. This is a first for me and such a victory. I cannot thank you enough for the tips. I will never decorate again without using a fan!