Just send them to Canadian Tire and tell em to take pictures of Crossman Pellet pistols, they are full metal and look 100% real.
"RepeatAir® 1008SB CO2 pistol
Single or double action semi-automatic pistol. Great for fast-action fun. Fires eight rounds as fast as you can squeeze the shot off.
Power Source: co2
Caliber: .177 (4.5 mm)
Max Velocity: up to 430 fps (131.2 m/s)
Capacity: 8-shot rotary clip
Length: 8.63" (21.9 cm)
Weight: 1 lb. 1 oz. (.48 kg.)
Material: Barrel: Rifled steel, Grip and Frame: Synthetic