If you have a Party City store near you, it is another great place to find Disney items. They have Disney lanyards for $1 and most of the Disney themed toys and games range between $3-$5.
I also like checking out Walgreens. We went for Halloween/Christmas last year and got activity pads, stickers, temporary tattoos, light sticks, spinning toys, all Disney themed and the most expensive item was $5.99 (that was for the spinning toy, much cheaper than $14 in the parks).