Very cute idea for a Halloween themed party - for adults and/or kids! No instructions included in the link, but it is easy to do. Just melt some white chocolate or white candy coating and drizzle over the pretzel rods so it resembles bandages. Place some candy eyes on - use the coating for "glue"! - and you have some pretzel rod mummies!
Swirly Halloween Cookies - @Rebekah Ahn Ahn Mannix - O & H would probably have a blast making these with you! They can both mash the food coloring into the cookie dough, and O can help roll the "snake" out of it. :)
Swirly Halloween Cookies use a paleo sugar cookie dough (both healthygflife.com and againstallgrain.com have one) and gel food coloring in orange, black, green and purple. Can also use sprinkles to decorate.