Not sure if you really can. Well, I guess if you made them feel completely safe and comfortable doing so, then you may be able to.
You can add some toys and perches to your bird cage to enhance your bird's play. PetProductsByRoyal.com has both plastic and wooden ones that you can build and customize yourself.
A drinking bird (brand name is The Dippy Bird) can be bought from Amazon, Toys R Us, Hobbies & Toys, Staples, Purple Post Box, Crazy Harry and Grand & Toy.
Angry Bird toys are now widely available in shops including Argos and Amazon.com. You should be able to find a large selection of plush toys, amongst other kinds of merchandise.
You can find Angry bird plush toys in any store like walmart and k-mart for a reasonable price.
the bird needed a big one
You can purchase toys and dolls online at many websites. Some examples are: Ebay, Amazon, and doing searches for which toys and/or dolls you are most interested in.
It depends on the bird, but in general they like things they can preen (fluffy bird toys or toys with stringy stuff on them), jingle or rattle, or which have moving parts. Some birds prefer things that jingle. Some prefer things they can chew on. Some like bright colors. Try a little bit of everything and see what your bird enjoys. :)
Yes, bottle brush wood is safe to use for bird toys and perches.
Bird-That-Swims - A bird that doesn't fly, but swims Cowboy-Who-Rides-An-Ostrich Boat-That-Can't Stay Afloat Spotted Elephant Charley-In-The-Box Misfit Dolly
There are many sources to buy bird toys online. The company sites of PetSmart and Petco are great places to start. Plus, you can always go to eBay or Amazon to find a possibly cheaper selection.
Many online retailers sell Angry Bird toys. Some are Walmart, Kmart, Sears, Gamestop, Target, Toys R Us, Kohl's, Amazon, Ebay, Party City, Overstock. You can even order from the official Angry Birds website.
Seven year old boys are more interested in toys than rockers and ottomons. You should find out what types of toys he is most interested in.