They are very easy and fun to make, plus they also look adorable.
All thanks toHot Humble Pievia YouTube for making this compilation.
Place 2 hearts each on the wood and attach using a glue stick.

Image Credit: Hot Humble Pie via YouTube
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Trace and mark the shape of the truck onto the cardboard and paint it white.
Combine the white and brown paint, then use the mixture to outline the image.
Draw the other details with a marker, then paint the surface with acrylic.

Remove the sticker at the back and stick it on the truck, super glue the valentines sign.
Spray jars with white primer and let dry.
Cut a small craft stick shorter then attach it at the bottom.

Dry brush with white paint, then print out a text/sentence and cut it out.
Stick it onto the wood, then drill 2 holes on each top corner of the wood.
Dry brush with brown lightly to create streaks, add a bit of black on the edges.
Trace the heart-shaped box onto the paper, cut out, then set aside.
Paint the box with white and let dry.
Spread glue stick inside the box then stick the paper properly.
Poke a hole thru the top of the heart-shaped box and insert a curly wire.
*All these images are credited toHot Humble Pievia YouTube.