Thankyou 
Plusha, I used ready made cookie mix (powdered one), added a spoon of egg substitute (in your case an egg) and 200 grams of butter.
kneaded the dough, rolled it out and used a star shaped cutter to cut out the stars.
The wands are paddlepop sticks pressed into the back of cookies.
Baked in the oven for 12 minutes.
For icing bought icing mix in pink mixed with 50 grams of butter and 2 tbspns of milk.
Dusted the cookies after icing with icing sugar (though next time Im going to use silver decorating balls ) and let the icing set for half an hour.