Materials:

Leave 2 -3 inches on either side of the slit to keep the poster from ripping at the sides.
Paste or draw footprints at the bottom of the poster - horizontally.

Using
the string, lace it (from the bottom) through the holes in the Holmes.
Put
the holmes on the front of the poster over the slit, and guide the string
ends through the slit.

You should now have a sliding Sherlock Holmes that is looking at the footprints below, searching for "clues".
Inside the footprints, put the illustrations for the verse you are working on, and slide the Sherlock across.
This works like a "follow the dot" song.
Before I added the Sherlock sliding piece to my poster, I covered the front with clear contact paper so all I have to do to switch verses is to tape the art onto the footprints. The tape comes off VERY easily!
I can use this for other songs
in the future, too!
This is what I did for the Jr. Primary. I printed out and colored the following:
I then pasted them in the following order (3 across and four down with plenty of space around each) on a piece of posterboard:1 watch 1 kid (with arrow) 1 arrow up 2 hearts 3 eyes 2 scriptures 1 flower with arrow 1 thought bubble with scriptures 1 thought bubble (I put a small picture of Christ in the bubble) 1 child praying 1 pair binoculars
I (eye) love (heart) to read the holy scriptures (scriptures) and every time (watch) I (eye) do, I feel the spirit start to grow (flower wth arrow) within my heart (heart) a testimony that they're true (thought bubble with Christ) Search (binoculars), ponder (thought bubble with scriptures) and pray (child praying) Are the things that I (eye) must do. The Spirit will guide (arrow up) and deep inside (kid with arrow) I'll know the scriptures are true (scriptures)
I then made a puzzle out of the posterboard,
and cut out the pieces. The pieces were taped under random chairs,
and the kids loved searching for them. (Hence the game, SEARCH AND PONDER)
:) The children with the pieces came to the front and put the puzzle together
(after pondering where the pieces went). We went over the song, sang
it with the pieces, and then I called on reverent children to come up and
remove some of the pieces. We tried to sing it without the pieces,
and doing it over and over again was fun to do with the challenge of missing
pieces.