So, what are you likely to find inside?
Search the internet and you'll soon find plenty of websites dedicated to planning the perfect party for your little darlings.
"Don't let your guests go home empty handed," one blurb cries, "fill up their party bags with all sorts of goodies!"
One site offers 17 party bag products in the boys' range and 25 products in the girls' range. These include everything from Spider-Man and Ben 10 pencils, to bouncy balls, bubbles, plastic hand clappers, bracelets, sparkly stickers and lots of princesses.
There's even a "stylish shoe pencil sharpener". No, me neither.
If you don't fancy going down the Disney or superhero theme, there's a non-gender specific 'Jesus Loves You' pencil. It's worth a thought.
Health & Living