Bing announced they support searching using Emoji characters, which is incredibly useful (sarcasm) but very cool. It reminds me when SEOs were using Emoji characters to try to boost CTR in the mobile search results.
That being said, Google does not let you search using Emoji characters, but Yahoo (which is powered by Bing) and DuckDuckGo both allow for it as well. Surprisingly, Wolfram Alpha does not.
Here are screen shots of searching for 
[Apple] on Google, Bing, Yahoo and DuckDuckGo:
I think DuckDuckGo wins!
How about [ice cream sandwich]?
You can even use combos! Fun but not too useful.
Forum discussion at WebmasterWorld.
