I spent maybe an hour or two on this, was a fun exercise. I told him if he likes one or two he can take it to a more pro graphic designer to tweak it further and make something crisp. Would save him a lot of money to skip that initial stage, if he likes any of these he just needs to hire someone to make it vector and maybe add some gradients or whatever to pro it up
Here is his current logo:
He said he wanted to update it, make it fresh. Here was my approach:
Hope they help him out. Was fun