Don’t monkey around with your holiday shopping.

If you’re toying with the idea of getting a head start on holiday shopping, consider stocking up on the season’s hottest toy while it’s still on shelves. Fingerlings—finger-sized plastic monkeys that sit on your digits and blink and respond to touch, motion and sound — were among the best-selling toys during the month of September, according to The NPD Group, a market research firm.

Created by the Hong Kong-based WowWee, a robotic toy manufacturer, Fingerlings launched in August and retail for as little as $14.99 at stores like Walmart, BestBuy and Toys R Us, but due to their seasonably high demand, they’re being sold on third party sites like Trendly for up to $180.

The Fingerlings, which each have a name (Zoe, Mia, Finn, Boris, Bella, Sophie and Gigi to name a few) have their own collection of accessories like monkey bars, swing sets and see-saws for $39.99—if you can track them down.

Here’s a look at the hottest toys since 2010:

These interactive toys that hatch from plastic eggs and learn how to walk, talk and play games were all the rage during the 2016 holiday season when they retailed for $59.99? Retailers quickly sold out of their inventory and websites like eBay had them listed for up to $1,000.

Pie Face Showdown
Nerdwallet reported that the Pie Face Showdown topped the charts for the most desired toy of 2015. The $24.99 game distributed by Hasbro smacks whipped cream in the face of players on the count of 3 as they fight to be the first person to press a button.

Jakks Pacific Sing-A-Long Elsa Doll
The Disney movie Frozen came out in late 2013 earning $1.2 billion at the box office — which may help explain why the $39 singing Elsa doll from Frozen was one of 2014’s year’s most popular toys.

Furby Boom
According to Walmart, one of the top toys of the year was the Furby Boom, a multicolored, interactive pet that learns to speak the more it’s played with. The starting price for one of these fuzzy creatures is $89, but Walmart also a version for over $200.

After 14 years in retirement, this $54 owl-like Furby creature took the top spot on the toy charts in 2012.

Air Hogs Hyperactives
The remote controlled $29.99 Air Hogs Hyperactives line of stunt vehicles proved to be the hottest toy of the year.

Nerf N-Strike Stampede Blaster
The Nerf N-Strike Stampede Blaster is rated for ages 8 and up and proved to be Hasbro’s new and improved fully automatic Nerf gun which retails for $49.99.