Just tried these birthday candles for my niece's party and WOW they're fun!

The colored flames are super cool but you REALLY need to use them in a dark room - we turned off the lights and the kids went wild when we lit them!

They burn fast (about 5 mins) so have your camera ready. Some colors show better than others - blue and purple were most vibrant.

The included plastic holders are genius - no wax mess on the cake! Though be careful inserting the candles as they're quite thin.

Pro tip: Let them burn for 30 seconds before singing - the colors get brighter as they melt down.

Would totally buy again for special occasions, though maybe not for daytime parties. Such a unique way to make birthdays magical!