The gifts that can be contained in the envelope are as follows:

Bookmarks, notes, greeting cards, rulers, feathers, stickers, postcards, rings, necklaces;

You can also do it yourself:

Origami, leaves, dried flowers, glue dripping works, puzzles, playing cards, handkerchiefs, rubber stamps.

Gifts are things that people give to each other in social activities to express their blessings and wishes, or to show friendship.

Gifts are carriers for the giver to convey information, feelings and wishes to the recipient. Usually things that people give to each other to please each other, or to show goodwill and respect. Gifts are also used to celebrate festivals or important days, such as roses for Valentine's Day or birthday presents.

Gifts can also be immaterial. There is an ancient saying in China that "a goose feather is sent a thousand miles away, but the gift is light and affectionate", which shows that the value of a gift lies in the goodwill and intention of the giver, not in the value of the gift itself. Gifts don't need to be too expensive, just express your mind.