This is a Nintendo logo keychain with a loop for a clasp or keyring.
When printing, it may be best to use a heated bed and keep the bed warm for easy removal. The supports which hold the letters internally are thin and can break easily if too much force is applied to remove the item. I usually complete the print, then warm the bed up to 50 degrees C. I then carefully remove the keychain with a scraper. You can probably use rafts to make it a bit easier to remove, eliminating the need to do this.