if you can make this better then tell me. you can make it look more realistic if you get a two way connector and take a blue rod and connect them together then stick the rod in the hole at the top.
Step 1: The Parts
8 yellow rods
16 red corner connectors
2 snowflake connectors
when putting things inside the grenade don't put in rods as they will just fall out
i have just used orange connectors, snowflake connectors and half circle connectors