Make a "hidden" Bic Pen Gun

ok this is week one and my first instructable and in it i am going to show you how to make a bic pen gun that is hidden in a marker tube

Step 1: Prep

ok this is going to take about a min. if you have all the step like me

ok this is what you need
a school smart marker
a bic pen(all taken apart)
two rubber bands(any size)
and about a 2cm cut of a nerf dart
last a ruler

Step 2: Preping the Marker

ok take the marker and take the back of the marker of and remove the ink and tip out and throw out
(note take a knife and cut some of the tip that holds the tip)

Step 3: Preping the Pen

ok here take the pen tube and cut it to 3.75 inch's take the 2 cm nerf cut and sild it arond the end of the pen(this is to would the barrel in place and so it doesn't pull out of the but is optional)

Step 4: Finshing Steps

ok wrap the rubber bands so that 1 is looped or the firing mech. and the other is to hold it(could use tape) take the end of the pen(not with dart on it) and stick it in the tip of the maker test to make sure it slides nicely pull is out and load with anything and have fun