Time for some weft interlock.
Using some scrap yarn, divide your warps into roughly four evenly spaced sections.
Insert your four wefts going in the same direction, from left to right. Then head back to the right starting with the weft on the right. When you weave the second weft, catch it around the first weft and weave. Do this with the following two wefts. Essentially, the wefts, where they meet, loop around one another. The line between the wefts will be in between warps making this very different from warp interlock, where you wrap your weft around the same warp. With weft interlock, which is frequently used in Navajo technique, there is less building up of higher weft areas where they interlock making it a better technique for building up straight lines. The best technique is obviously slit technique where there is no build up, but then you have those pesky slits to sew up.
Next weave back from right to left. Your wefts are already caught around one another so you are just weaving back.
The next step is to weave from left to right, catching the wefts with one another until you get to the right side of the weaving.
Continue this process with the next wefts. Weave until you’ve built up about half an inch.
End your wefts except for the far right one. Weave that back to the left slightly and replace it with two silk wefts.
Add two silk wefts and weave for a bit. Then replace with single silk weft.
Add a row of beads.
Weave a the silk weft.
For a bit!
Add another color of single silk weft. Weave for another bit and then add another row of beads.
Continue with some single silk weft.
Add some railroad yarn to the silk weft.
Weave a bunch of it.
Add some single silk weft. The double it up.
Weave some doubled silk weft.
Change it up a bit by replacing one silk weft with a new color. Play!
Play with some of these techniques (maybe try those fun squares again) until you’ve woven another four inches!