Children are the happiest during the holiday season and with the slew of toys already available in every retail store, kids' and even parents' Christmas is sure to be merry and bright. Kids have their own favorites, and parents who scratch their heads in difficulty of picking the best toy to get have this article to assist them.

Disney's "Frozen" is incontestably a runaway success and it continues to upsurge its popularity with Frozen-themed merchandise. Elsa is sure a crowd-favorite and so is her toy version, Snow Glow Elsa. The doll allows kids to see her icy powers up close, and her signature dress beautifully illuminates. The cooler thing is that the Ice Princess can even sing "Let It Go" to its owner. All she needs is a tap on her gleaming magical snowflake necklace.

Of course, if Elsa is in the shelves, her sister Anna is, too, and the toy is called the Disney Frozen Sparkle Doll.

Snow Glow Elsa can be purchased for $35 from Amazon and delivery is free of charge. To get a good deal, shoppers can buy both the "Frozen" goodies from Argos and get either a third toy (that costs $21) for free or enjoy 50 percent off a "Frozen" backpack. Stock is already running out online and in stores so parents have to dash and tear to grab one or two of the dolls before the shelves go empty.

My Friend Cayla is an advanced toy. Kids can ask her questions about her likes and dislikes and even the weather and she'll answer. She is also set to sync with Android and iOS via Bluetooth. Amazon offers the sophisticated doll for £43.79. Delivery is free.

A trendy and kid-friendly wearable is also on hand, thanks to Vtech. The Kidizoom Smart Watch allows kids to take photos and put some effects and filters on them. It can even record videos and voice. There are also three pre-loaded games kids can enjoy. Visit Toys "R" Us and get the Smart Watch for £23.99 ($29) and have it delivered at no cost.

For those who'd like a colorful bird pet, Little Live Pets Bird Cage is the best purchase. It is an interactive bird that responds to the kid's touch by singing, chirping and tweeting in 30 different bird calls. Get it from Toys "R" Us for only £14.59 when reserved through free click and collect.

At Smyth Toy Store, tons of games are available and buyers can save by availing of their free "click and collect" service. The following are the prices when free click and collect is availed.

The first toys to mention are the Assorted Minecraft Figures, which are available for only £7.99. Shoppers can get various character sets to save £1 every figure, and while on it, they can avail of free click and collect to have the toys delivered without extra charge.

Another game to get from Smyth Toy Store is Bop It! Beats by Hasbro. This game combines the classic play and songs from favorite singers and musicians and it only costs £11.99.

Another Hasbro toy, the Nerf Demolisher 2-in-1 is available in this retail store for £20.99 as well as Benny's Spaceship from "The Lego Movie" priced £26 with free click and collect.

Other toys include Toot-Toot Animals Safari Park by Vtech for £39.99, Transformers Stomp & Chomp Grimlock by Hasbro for £89.99 and Zoomer Dino-Boomer for £99.99. More games to choose from are the Spy Net RC Recon Video Bot for £59.99, Sew Cool Sewing Studio for £29.99 and the £38.00 Children's Accordion by Vilac.