Bury some things in a tupperware sand box and let the children "dig them out."
After a child digs out an object, discuss what it has to do with Conference/which commandment it is referring to.
Then sing the song listed below.

A missionary Badge (Missionary Work)
Talks by Elder Henry B. Eyring, Elder M. Russell Ballard
Song: The Things I Do pg. 170-171

Picture of Family (Family)
Talks by Elder L. Tom Perry, President James E. Faust, Susan W. Tanner
Song: I am a Child of God pg. 2

Tablets (Keep the Commandments)
Talk by President Hinckley , Elder D. Rex Gerratt
Song: Keep the Commandments pg. 146

A packet of seeds (Faith)
Talks by Elder Robert D. Hales, Elder Richard G. Scott, Elder Craig C. Christensen, President Hinckley
Song: Faith pg 96

Praying Hands (Prayer)
Talks by Elder Russell M. Nelson
Song: We Bow Our Heads pg. 25

Ear Phones (Holy Ghost)
Talks by Elder Joseph B. Wirthlin

Picture of Grandparents (value our grandparents)
Talk by President Boyd K. Packer
Song:  A Happy Family pg. 198

Cornucopia (Giving Thanks)
Talk by Elder Dallin H. Oaks