Thank you! The price starts from 35 $ on Amazon on a basic model; or if you want one where you can set the temperature from 70 $. I would recommend the one where you can set the temperature .You can use ABS or PLA filament(which is safer and often made from corn) The filaments are sold as a pack of multiple colors or you can buy a larger spool of ABS or PLA. I got 1 kg of ABS black for around 20 euros in Europe.