Apparently they hid some things in the update, some new blueprints
Kritzkrieg + Bonk! = Crit-a-Cola......................Credit to Segab (confirmed)
Charge 'n Targe + Razorback = Gunboats......Credit to Cryefer (confirmed)
Sandvich + Bonk! = Dakolah's Bar..................Credit to Cryefer (confirmed)
Equalizer + Eyelander = Homewrecker...........Credit to psiwarp (confirmed)
Batter's Helmet + 2 Bonks! = Bonk Helmet.....Credit to mastercannon (confirmed)
Sandman + Scrap Metal = Pain Train..............Credit to Duffren (confirmed)
all from this topic on steam forums:
http://forums.steampowered.com/forums/s ... ?t=1265946