London Olympic organizers have come under fire after releasing the list of restricted objects for 2012 venues.
At the London Olympics, "any objects or clothing bearing political statements" will not be allowed.
In keeping with airport-style security measures, liquids can only be brought in containers of up to 100 ml, although an empty bottle can be brought in, and free drinking water is available on the park.
Food must not be in "excessive amounts" - yes to sandwiches, no to picnic hampers, which would not fit through the bag scanners anyway.
"Balls, rackets, frisbees or similar objects or projectiles, noisemakers such as hunting horns, air horns, klaxons, drums, vuvuzelas and whistles" are all also on a two-page list of restricted items sent to all ticket-holders yesterday.
"Large flags (bigger than 1 metre x 2 meters), oversized hats, and large golf-style umbrellas" are also not allowed.
"Flags of countries not participating in the Games," are also not allowed, though an exception has been made for the individual flags of England, Scotland, Wales and Northern Ireland.
Whether the aboriginal flag Cathy Freeman memorably draped around her shoulders after winning the 400 meters in Sydney would be permitted seems a murky issue.
It is not a national flag as such, but is certainly a political statement - and she was wearing it round her shoulders, like clothing.
Unsurprisingly all types of knives are banned - but an exception is made for "the Sikh article of faith kirpan/ceremonial dagger", which will be allowed.
Bikes and folding bikes are not allowed in to the Olympic Park, but there are 7,000 bike parking spaces around the site. The nearest Barclays Cycle hire drop off is about a 15-minute walk away.
"No balls? No picnics? That's my plans a little bit ruined. Just have to tell the kids now," the Independent quoted one disgruntled games attendee as saying.
"NO liquids over 100ml allowed, Payment with Visa or Cash ONLY, 1 small bag per person.. Is this Ryanair FFS?" another said.
The food restrictions are likely to boost retail sales on the Olympic Park, where the world's largest McDonalds is waiting to serve its first customer. It has more than 1,500 seats.