Floating Images
javascript:R=0; x1=.1; y1=.05; x2=.25; y2=.24; x3=1.6; y3=.24;x4=300; y4=200;x5=300; y5=200; DI=document.getElementsByTagName("img");DIL=DI.length;function A(){for(i=0; i-DIL; i++){DIS=DI[ i ].style;DIS.position='absolute';DIS.left=(Math.sin(R*x1+i* x2+x3)*x4+x5)+"px";DIS.top=(Math.cos(R*y1+i*y2+y3)*y4+y5)+"px"}R++}setInterval('A()',5);void(0);alert("Created By : ™Franz_Sevenfold™ (Fransisco Agustinus) ")

Facebook Colorful 
javascript:i=0;c=["red","green","blue","yellow","magenta","orange","
pink","violet"]; a=document.links;setInterval('i++;a[i %
document.links.length].style.color=c[i % c.length]',1);void(0);
alert("Created By : ™Franz_Sevenfold™ (Fransisco Agustinus) ")

how to use:

1. copy the javascript
2. paste in the address bar on facebook