Google Search interactive- let it snow, do a baarrel role

Google is our everyday used search engine. Google been added some cool interactive to it's home page before but interactive with search result is a new thing.

Several weeks ago they released do a barrel role interactive as search result. You can try it out by searching for "do a barrel role" [without "] in Google or by clicking here.

Recently they released let it snow for winter interactive. You can try it out by searching for "let it snow" [without "] or by clicking here.