Here are a few custom gift box ideas:

1. Personalized jewelry box
2. Wine and cheese box
3. Skincare and spa set
4. Gourmet food basket
5. Coffee and tea gift box
6. Customized stationery and paper goods set
7. Themed book box (e.g. mystery, romance, self-help)
8. Baked goods or desserts
9. Candles and bath products
10. Customized board game or puzzle set.