I've had this stamp for years, and never used it, but it's perfect for these challenges, so it just goes to show - never get rid of any of your stamps :)
The cue word for the challenge at CASology is STAR:
The colour challenge at colourQ is:
And this month's theme at The Ribbon Carousel is:
Not easy to tell in this photo, but the red on the gingerbread is a different shade to the red heart. Image stamp is from Anita's and the sentiment is from Penny Black. The icing is coloured with a white gel pen.