Really big ones. From MTV Geek (by PGPoA Pal Lemonjuice McGee):

Mezco Mega-Scale ThunderCatsâ„¢ Lion-O

ThunderCats Ho!
Straight from the ThunderCats’ Lair on Third Earth, it’s Lion-O and the legendary mystic Sword of Omens.

This mega-scale figure measures over 20 inches tall from the tip of his upraised, extended sword to the soles of his Thunderian boots.

Featuring 7 points of articulation this mega figure is superbly detailed, perfectly capturing not only the iconic look of Lion-O as he appeared in the classic television series, but the essence, of Lion-O as he proudly raises the mystic Sword of Omens towards the heavens and roars out “Thundercats, Ho!” He comes complete with his impressive Claw Shield and a removable mystic Sword Of Omens.

Lion-O is packaged in a collector friendly window box that allows him to be displayed while remaining Mint In Box.

To preorder, visit:
http://www.mezcotoyz.com/store/default.aspx

The preorder page seems not be working as of this posting. That, or it’s already sold out.