Blue is one of the limited edition beefcake pyro lights sold at worlds 08. Top is definitely an excalibur.
From the sy blog:
The EXPERIMENTAL BEEFCAKE:D PYRO LIGHT… 9 pieces made, sports 2 of a 5x11x3mm bearing for a 4mm gap in the PYRO LIGHT (instead of regular 3mm), plays extremly nicely!, set up with one thick DifPad