Buy a photo booth prop box and roughly half of it will be touched once and left on the table for the rest of the night. That is not a reflection on the guests. It is a reflection on the props.
There is one rule underneath almost every prop that fails, and it is worth stating before the list: guests are holding a drink. Anything requiring two hands is competing with something they are not going to put down.
Here is what survives contact with a real party.

1. Oversized sunglasses
The most reliable prop there is, and it is not close.
Sunglasses work on every age, with every outfit, and — critically — they do not require the wearer to commit to a joke. A guest who would never put on a novelty hat will put on sunglasses, because it reads as style rather than costume. They also photograph well, which most props do not.

2. Signs with one word on them
Not sentences. One word.
A sign that says "BRIDE" gets used. A sign with a full sentence gets read, considered, and put back down — because reading it takes longer than the photo does, and the guest is aware of a queue behind them. The prop has to be understood at a glance by both the holder and the viewer.

3. Hats
Hats work all evening, which very few props do.
The reason is worth understanding, because it predicts everything else: after about 10pm, guests will not put anything on their face. Makeup, glasses, comfort, self-consciousness — the reasons vary and the effect is consistent. Anything worn on the head keeps working when everything worn on the face has stopped.

4. One feather boa per table, not a box of them
A pile of boas in a communal box gets picked over early and looks bedraggled by mid-evening.
One per table changes the dynamic entirely. It becomes something that belongs to that group, gets passed around, and comes back. Distribution matters more than quantity, and this is true of most soft props.

5. Nothing that needs two hands
Worth repeating as its own point, because it disqualifies more props than anything else.
Giant frames, oversized cutouts, anything held above the head with both arms — these photograph beautifully in the product listing and get used twice at the actual party. Every guest is holding a drink, a phone, or someone's hand. Assume one hand and you will buy better.
The short version
- Oversized sunglasses — works on everyone
- Signs with one word, not a sentence
- Hats, because face props die after 10pm
- One boa per table, not a communal pile
- Nothing that needs two hands
Props are the cheap part. If the photos themselves are not coming out well, the problem is usually lighting, not what people are holding.
