Whether a handicraft can be patented must be determined based on the specific circumstances.
If your handicraft can achieve industrial mass production, that is, it can be produced on a large scale with high reproducibility.
Then, you can apply for a patent. The main patents involved are design and utility model patents.
The handicrafts you mentioned for “marriage or gifting to friends” can be patented.
For specific instructions on how to apply, you can read relevant books and the relevant provisions of the "Patent Law" and "Patent Law Implementing Rules".
However, I have a template for making patent application documents and can teach you step by step how to apply for a patent. If you want, you can contact me.