How can i make a hole in hard tree resin?

There are hand-powered drills. They are old-fashioned and your grandfather may have one, or an older neighbor. If your neighborhood has a co-operative they may have one there. The alternative is to take your wonderful find to an adult and ask for help. Mark where you need it to be drilled and take it into school and ask the shop teacher to help. Hand drills can also be purchased in some larger hobby stores.