How do I add a santa hat to avatars?

[ineedhelp]

Is it possible to add a santa's hat to the top right of member Avatars ?

If so, can someone tell me the code for it, thanks.

 

[Shelley]

yeah on narrowist width I'd use media queries to display none it.

 

[MKSwni]

The image is not showing up for me and I've checked my imagePath. Apparently any image I'm putting into overlay is not showing up. Any idea why? Would really like the santa hats for my site.

 

[danjb]

The image is not showing up for me and I've checked my imagePath. Apparently any image I'm putting into overlay is not showing up. Any idea why? Would really like the santa hats for my site.

I'm having this same issue. Used @Shelley 's bit of code on the 1st page for santa hats:
.messageUserBlock .helper {
background: transparent url('http://i.imgur.com/lqeMwWM.png?1') no-repeat;
display: block;
height: 45px;
left: 70px;
position: absolute;
top: -7px;
width: 123px;
}

Edit: Solved, Was editing the wrong theme: derp.