Bring a saucepan with 1 inch of water to a boil. Put the chocolate in a large metal or heatproof glass mixing bowl and place on top of the saucepan with boiling water. Pay careful attention that the mixing bowl does not touch the surface of the boiling water. Stir the chocolate until it is almost melted. Remove it from the saucepan and continue to stir until the chocolate is completely melted. This entire process should take no more than 5 to 10 minutes.
Line a cookie sheet with parchment or waxeds paper. Dip each biscotti or pretzel in the chocolate to cover half of each and then dip in the sprinkles or candy cane pieces. Set each piece on the lined cookie sheet to allow the chocolate to harden.
Store in cool airtight containers for up to 2 weeks.