The following poem titled "The Christmas Nail" could be incorporated into your Family Home Evening, YW/YM or seminary, or Relief Society lessons.

The website Gem's Cottage also has an associated craft activity you can make a nice visual for this.

The poem:

It's Christmas time at our house

and we're putting up the tree.

I wish I could find some simple way

to remember Christ's gift to me.

Some little sign or symbol

to show friends stopping by,

The little babe was born one day

but He really came to die.

Some symbol of His nail-pierced hands,

the blood He shed for you and me.

What if I hung a simple nail

on my shining Christmas tree?

A crimson bow tied round the nail

as His blood flowed down so free,

To save each person from their sin

and redeem us for eternity.

I know it was His love for us

that held Him to the tree,

But when I see this simple nail

I know He died for me.

- Author Unknown