How would I attach an object to camera?

Like making parts that are attached to players camera.

I have done it once in unity but the unity engine is different from roblox's

Any tutorials on this I can find?

local camera=workspace.CurrentCamera
local part=Instance.new("Part",camera) -- local parts
part.FormFactor="Symmetric"
part.Size=Vector3.new(1,1,1)
part.Anchored=true
part.CanCollide=false

camera.Changed:connect(function()
	part.CFrame=camera.CFrame*CFrame.new(0,0,10)
end)

This makes a 1x1x1 part stay 10 studs directly in front of your camera whenever your camera changes. Assuming the camera does fire the changed event whenever your character moves because the camera follows your character, this will work.