Through Braucherei we know that plants have spirits that are different from those of humans, but they are still spirits engaged in the birth, life, death, decay, rebirth cycle. Part of the Zusaagpflicht, or the Sacred Duty, is to forge the relationship between humans and plants. The Butzemann bridges both realms. We cultivate his "children" and he, in turn, helps to ensure healthy crops and safe land. The Kannsege represents both birth and rebirth. It is the birth of a new Butzemann but the rebirth of the plant spirits contained within him.
A knowledge of Braucherei would help here, because one may need to move the energy of the plants into the remnants of last year's crop. However, typically, the energies are still present in the remnants.
The remnants are placed into the form of a scarecrow. I typically chant runes over the form while creating him. I physically insert the runes Ingwaz, Othala, Jera, and Fehu into his clothes, but I usually chant other runes, particularly Ansuz, over him. We're working to arouse the plant spirits.
I then insert a symbolic "heart," which often comes from the root of a plant such as maize, sunflower, or other annual. I sew him up (if need be) or tighten the components. Right now, he is just a scarecrow with some runic energy.
During the Ceremony of the Corn, the Ansuz rune plays a major role in the mind's eye. The purpose is to communicate the runic energies of the mind to the runic energy in the scarecrow. We then breathe into the "mouth" of the scarecrow, now activating the plant spirits and giving plant consciousness to the Butzemann.
He is then given a name. The names in Urglaawe follow old, perhaps antiquated, Deitsch naming conventions.
He is then given numerous blessings and well wishes... Offerings of food are placed before him, and he is given instructions. The instructions include what he is to watch, how he is to protect the land and scare away intruders, and how he is connected to you (he is a manifestation of the land upon which we live). We make an oath to look after him and to tend to him, to the "mother" of his children (the land, hence the lack of a Butzefraa), and to his children.
He is then walked around the perimeter of his turf so he knows what he is to guard. Then he is perched at his post where he should remain throughout the growing season. If his perch breaks, it should be replaced respectfully.
Throughout the growing season, the Butzemann should be given offerings of milk, honey, mead, incense, flowers, etc.
Two important Verbots (taboos) come through Braucherei's lore to us: 1). As his clothes are the Butzemann's only possessions, they must never be used again on a human or another Butzemann; 2). A Butzemann must not remain beyond Allelieweziel (October 31). Otherwise, his spirit follows Holle on the Wild Hunt, leaving behind an activated shell that is attractive to baneful wights.
The burning time can take place as early as Erntfescht (Autumn Equinox/Second Harvest), but, typically, in Urglaawe, the burning takes place as close to Allelieweziel as possible.