Most PCs can't afford a wand until level 2. At level 3 Wizards get a 2nd level divination spell called Elemental Speech; they can talk to elementals. Follow me here:
1. Put the spell on a scroll
2. Cast the spell before heading into a battle
3. Using the Share Spells feature put the personal spell on your familiar
4. Your familiar can now speak the command word... in elemental.
The rules say you have to speak the wand's command word, but not what language to use. This may work in a home game (check w/your GM) but probably not in PFS.
Frankly I'm all for familiars wielding wands. Any familiar in my game is a viable candidate. The way I figure it, if you take a vanilla familiar w/no archetype and are willing to spend a feat on it so it can use UMD skill, why would I nullify those choices? For that matter even some of the familiar archetypes aren't all that useful long-term so why have the character choose an option (familiar) that is just dead weight on their character?
I wholeheartedly encourage PCs in my games to use their familiars. If they're small and dexterous enough to hold things in their paws I give characters some extra move-equivalent options: "my squirrel draws a dagger for me so I can full attack with 2 weapons." Aid Another, UMD, extra hands or eyes; these are the cornerstone of having a familiar IMO.