The YouTube channels have approximately 1.2 million subscribers combined, as of July 2015. On October 31, 2015, Olga started her successful series "Will It Juggle?," which she announced at the first annual Stream Con NYC. In the series, she takes viewers' suggestions of items to juggle, usually succeeding due to her circus roots. Kay has appeared as herself in a number of documentaries and webisodes, including the feature film "Butterflies" in 2009. In 2011 she had appearances in "Shane Dawson TV", "JoeNationTV", "The Annoying Orange", and in 2012 acted in YouTube's original channel initiative show "MyMusic" as a raver character. She hosted the Rogue Pictures web show "Tube Top", which recognizes the top shows/videos on YouTube. She appeared in some "Your Grammar sucks" videos by Jack Douglass and collaborated with him on the short comedy video "Olga Kay: How to control your dreams!" in 2011, and in 2012 Toby Turner starred in a short with Kay entitled "Olga Kay Goes Haywire." She has performed at VidCon and was interviewed in the podcasts "New Mediacracy" and Rhett and Link's Ear Biscuits. Brands she has worked with include Microsoft, Ford, Google, Relativity Media, Axe, Capcom, Nintendo, Virgin Mobile, Xbox, and others. Kay launched "Moosh Walks", a media and retail brand that aims to empower young girls through storytelling, primarily about leadership. In 2014, Kay released her first characters as a line of 3D socks. The knee high socks feature numerous character designs and external ears. Kay said she created socks with ears because she didn't want to be another YouTuber with a logo on a T-shirt. Kay immediately recouped her initial investment in manufacturing the socks through a pre-order campaign. "Moosh Walks" were featured in the style lounge at the 2015 Emmy Awards. As of January 2016, Kay now has unisex socks and baby socks, and is developing pillows in collaboration with Throwboy. In 2017, Kay introduced a new sock character, Mushka, based on her cat and the inspiration for her brand name. In 2018, "Moosh Walks" was featured as one of the top women owned business on Amazon.