Pixelate
<style type="text/css"> img { filter: none; } a:hover img { filter: progid:DXImageTransform.Microsoft.Pixelate (maxsquare=4); } </style>

Invert
<style type="text/css"> img { filter: none; } a:hover img { filter:invert; } </style>

Wave
<style type="text/css"> img { filter: none; } a:hover img { filter: Wave(Add=0, Freq=5, LightStrength=20, Phase=215, Strength=5); } </style>

X-ray
<style type="text/css"> img { filter: none; } a:hover img { filter: xray; } </style>

Drop shadow
<style type="text/css"> img { filter: none; } a:hover img { filter: . id=oCodePre style="WIDTH: 95%; HEIGHT: 100%">progid:DXImageTransform.Microsoft.dropShadow( Color=888888, offX=5,offY=5, positive=true);.> } </style>

Glow
<style type="text/css"> img { filter: none; } a:hover img { filter: progid:DXImageTransform.Microsoft.Glow(color=green,strength=12); } </style>

Emboss
<style type="text/css"> img { filter: none; } a:hover img { filter: . id=oCodePre style="WIDTH: 95%; HEIGHT: 100%">progid:DXImageTransform.Microsoft.Emboss();.> } </style>

Circle Alpha
<style type="text/css"> img { filter: none; } a:hover img { filter: Alpha(Opacity=100, FinishOpacity=0, Style=2, StartX=20, StartY=40, FinishX=0, FinishY=0) } </style>

Transparent
<style type="text/css"> a:link img {filter:none;} a:visited img {filter:none;} a:hover img {filter:alpha(opacity=60);} </style>

Flip Horizontaly
<style type="text/css"> a:link img {filter:none;} a:hover img {filter:fliph;} </style>

Black & white
<style type="text/css"> a:link img {filter:none;} a:visited img {filter:none;} a:hover img {filter:gray;} </style>