If I were to say that something is "cute," could I extend the word by using Zhuyin at the end? Ex:

normally we don't repeat zuyin to emphasize, we repeat punctuation, for example 「可愛~~~~~~~~」or 「可愛!!!!!!!」,normally we don't repeat zuyin to emphasize, we repeat punctuation, for example 「可愛~~~~~~~~」or 「可愛!!!!!!!」