Well, they could send in special ops teams with combat air controllers to liaise with the rebels and designate targets and call in the planes from the front lines. It worked in Afghanistan.
But... dear-oh-dear, that would be “boots on the ground”.
Can’t have that, can we?
What specifically would these special-ops commandos 'lase' for the coalition jets to bomb? Just whatever random artillery pieces and GRAD rocket trucks they happen to come across while sneaking around the city of Tripoli dressed up like Bedouin tribesmen toting around their laser targeting equipment? They'd be a self-sufficient force capable of doing this for how long exactly? Would they need to rent an apartment in downtown Tripoli to accomplish this? Maybe get cover jobs at fish markets and call in air strikes in their off-hours after work?
I don't think that the environment of a city of over one million people under Khadafy's control is comparable to the mountains of Afghanistan where we targeted cave complexes for air strikes.
Nice try though, I guess.