A na-eji igwe a na-emepụta ihe na-emepụta onwe ya, dị ka teepu ntanye nke onwe, teepu okpukpu abụọ, teepu foam, teepu aluminum foil, teepu dị ọcha, teepu masking, wdg.
Igwe a na-adabara maka ndị ọkachamara anaghị kpara akpa, ihe nkiri, nkwụsị ihe klaasị akwụkwọ. A na-eji ya eme akpa, nbipụta na nkwakọ ngwaahịa, wdg.