Such as aluminum cans, foil, etc?
An apple, shove a pencil in tip where stem is for bole then a hole for mouth peice, you can even make a carb on side if you want, or you can take a pencil and take eraser end off and take eraser out of metal peice then scrunch it together so that it makes it into a bole with a little opening on bottem and shove it into a bic pen cap,(i learned that one at school we went to an education center so we didnt really do anything but blaze and smoke stoges all day) lol
just use a canor foil, they are easy.
Styrofoam cup with lid wrapped with foilMy soup stays hot for quite some time in this cold weather.
