Print a circle on to card for each child. Either cut them out for the children or let older children do that for themselves.
Print red and white hearts and again either cut them out for the children or let them do that themselves. They could add the names of family members to the hearts.
The ribbon can either be the verse from 1 John or blank for the child’s name. The children could colour this.
Let the children arrange the ribbon and hearts as they wish and then they can stick them down with glue.
I’ve included Pdf files of the templates.