Pour melted orange candy melts into a small zip top bag, and snip off one tip. Pipe small triangle shaped orange carrot noses onto a parchment paper lined baking sheet. Each nose should be about 3/4 inch long.
Drop one pretzel at a time in the melted white chocolate. Use a dipping fork or a kitchen fork to remove the pretzel. Tap the fork on the side of the bowl a few times and allow the excess white chocolate to drip off the pretzel. Set the pretzel on a parchment paper lined baking sheet.
Pour the semi sweet chocolate into squeeze bottle fitted with a small round tip (I used a pastry tip #3,) you can also use a pastry bag or even just a zip top bag. Pipe three sticks for on top of Olaf's head and set a pretzel grouping on top.
The chocolate will harden in the pastry tip as you work, so I advise using plastic tips that can be heated in the microwave. I love using Squeezit Bottles. They come with couplers and plastic pastry tips. I just clean out the tip using a toothpick and heat the entire bottle as needed.