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79005 part question

CNH1974 · 2014-12-30T14:11:07.000Z

I recently bought some spare pieces from 79005, the wizards Battle http://www.brickpicker.com/bpms/set.cfm?set=79005-1 I bought the two flanking towers because they are effectively made out of vintage Space parts. But I don't want the TrYellow 2x2 Globes on top. So I am going to list them but has anyone got an idea of what they are officially called? The set is too new to be listed in Peeron.