There are various examples of gotoku, such as those with the nail (kaeshi) part (the tips of the legs of gotoku) in the shape of the head of viper or cow, or those with long or square nails, designed and made by Yojiro TSUJI, a caster active during the time of the tea master SEN no Rikyu.
形もいろいろなものがあり、千利休時代の與次郎作で爪が、まむし頭、長爪、牛爪、方爪などが造られたという。