It took me awhile but I found some festive Christmas gel candles at DMB Expressions. There are several candles to choose from but this one includes sand, santa, a tree and present. Something like this would be fun to create.
They use pieces of gel to create the look of snow. A creative candle project that would make a nice present would be placing a miniature nativity scene inside the gel.
If you would like to make your own holiday gel candle Gel Tyme has a large selection of wax embeds for candle making. They have gingerbread men, gumdrops, trees, snowflakes and more.