Here are some websites with promises and suggestions for activities.
Quotes containing promises regarding attending the temple and doing family history
Protecting Our Youth through Family History
Youth Temple Challenge—Promised Blessings:
https://www.familysearch.org/en/blog/youth-temple-challenge-promised-blessings
The Family History Guide Can Help Youth Realize Promised Blessings:
https://www.thefhguide.com/blog/the-family-history-guide-can-help-youth-realize-promised-blessings/
The Promises and Blessings of Family History Work and Temple Work
https://myfavoritescriptures.blogspot.com/2015/02/promises-of-doing-family-history-work.html
35 Inspiring Family History and Temple Work Quotes
https://genealogypals.com/35-inspiring-family-history-and-temple-work-quotes/
Youth Connecting with Generations
https://www.familysearch.org/en/blog/youth-connecting-with-generations
Some links to whole family activities can be found on this website at the page:
https://sites.google.com/view/b9tfh/fun-family-history-activities-for-the-whole-family?authuser=0
More suggestions from FamilySearch:
https://www.familysearch.org/en/wiki/Family_History_Activities_for_Youth
Involve Children and Youth in Family History:
https://www.familysearch.org/en/wiki/Involve_Children_and_Youth_in_Family_History
Some ideas contained in the above website are to:
Tell stories (these stories can be just 1 to 3 minutes long. They don’t have to be extensive presentations.)
Young children can create, record, and share “Paper Slide Videos” For information on how to do that see one of the following websites (these videos are geared to teachers and classroom applications, but the process is the same for FamilyHistory). Each of these paper slide instructional videos follow the same basic structure, but some may be more accessible than others):
https://www.youtube.com/watch?v=Ayu9nV8z8-Y (This one is possibly the most detailed)
https://www.youtube.com/watch?v=kPe8XSk_cRY
https://www.youtube.com/watch?v=Qf6L1PTG3p4
Teenagers can create animated presentations using Paper Slide Videos, PowerPoint, Google Slides, Apple Keynote, Canva, or Loom.
Other things that can be done are:
Share heirlooms and photographs
Attend family reunions
Go on family history field trips
Play family history games
Involve entertainment
Celebrate with food
Create personal histories
Tie family history into school work
Age-Specific Suggestions
Teenagers: One key to involving teenagers in family history is to give them something meaningful to do. Although youth may not know how to do genealogical research, they often know how to use computers. Don’t hesitate to ask for their help with a computer-related or Internet problem. To help with family history, teenagers can:
Search on the Internet for family history information. For more details on this subject, please refer to the FamilySearch lesson “How to Do Research on the Internet.”
Enter information into a genealogical database, such as Personal Ancestral File or a similar record management
Young Children: Children are never too young to begin learning about their family. Don’t underestimate a child’s ability to appreciate stories about ancestors, but consider each child’s age and skills when you plan family history projects. Young children can:
Illustrate their own bedtime stories about their ancestors.
Create coloring books about specific ancestors or family stories. For an example of a coloring book, refer to Appendix B of this lesson.
Fill out their own pedigree chart with your help or draw a family tree. These activities help them visualize how generations are connected and where they fit in the big picture. For a blank family tree that you can use, visit http://genealogy.about.com. For a blank pedigree chart, visit www.familysearch.org. Click on Search and then Research Helps. Choose Sort by Document Type, then Form, then Pedigree Chart Form.
Create a pictorial pedigree chart by placing a small photograph of each ancestor by his or her name. From these photographs, children learn what each ancestor looked like, and children can compare similarities between themselves and their ancestors.
Some links to whole family activities can be found on this website at -- https://sites.google.com/view/b9tfh/fun-family-history-activities-for-the-whole-family?authuser=0 page.
Some more suggestions from FamilySearch:
https://www.familysearch.org/discovery/