Don't buy crappy souvenirs to remember your trip, make your own!

Step 1: Go on a Trip

Collect some sand. I went on a 5 week road trip across about 40 percent of my country to collect my sand.
You don't have to try so hard. Sand can be dyed with food colouring or you can use 'decorator sand' (the type they put in candle holders).
Also, buy two photo frames while you're out. Here I used 8" by 10".

Step 2: Prep

The sand gets poured in a gap between two panes of glass. In order to keep it there, we have to put a barrier in place.
So,
Clean your glass from the frames you bought. Place one sheet down on your work surface.
Place a spacer in between. I used the backing from one of the frames.
Place your second sheet on top. Take care to line them up well. Put something weighty on top to keep it all in place.

Step 3: Spot Weld

Use hot glue to 'spot weld' the sheets in place. It's a good idea to do this so that when you fill all the edges, you can move the sheets around for access without getting all skewey.

Step 4: Fill the Gaps

Don't worry about mess, it all gets hidden by the frame later.

Try not to leave any gaps.

Don't go all the way round!! Gotta leave the top open for sand.

You can also tape the edges for extra security. And to prevent cuts.

Step 5: Tools

I used straws, wire, skewers and tiny funnels made from paper to pour my sand into the gap, and push it around.

I also taped the glass frame to the picture frame backing for ease of sand pouring.

I also also made a bit of a sketch to follow.