SLA

 

octahedron

 i made a octahedron with 12 toothpicks 6 piece of blue tack i had to put a bigger piece of blue tack on the bottom because it was falling down a lot of time  it has 8 faces here is a photo . 

pyramid

i made a pyramid with 8 toothpicks and 5 pieces of Blue Tack. it has 4 triangle faces in one square face . it has 5 equilateral start with a square for the bottom I did 4 up until the centre so it made a pyramid.