Hey!
Today I have a new kind of TNT for you!
The video explains it :D

Commands (the important ones):

/scoreboard objectives add tnt dummy tnt

/scoreboard players add @e[​type=PrimedTnt] tnt 1
/scoreboard players add @e[​type=Squid,name=Open-Dimension] tnt 1

/execute @e[​type=PrimedTnt,score_tnt_min=1,score_tnt=20] ~ ~ ~ /particle enchantmenttable ~ ~ ~ 0.1 0.1 0.1 5 200

/execute @e[​type=PrimedTnt,score_tnt_min=54,score_tnt=54] ~ ~ ~ /clone ~2 ~2 ~2 ~-2 ~-2 ~-2 -785.5 56.5 240.5 replace move

/execute @e[​type=PrimedTnt,score_tnt_min=44,score_tnt=54] ~ ~ ~ /particle witchMagic ~ ~ ~ 1 1 1 1 500

/execute @e[​type=PrimedTnt,score_tnt_min=54,score_tnt=54] ~ ~ ~ /playsound random.explode @a[​r=20] 0 0 0 1 1.5 1

/execute @e[​type=PrimedTnt,score_tnt_min=54,score_tnt=54] ~ ~ ~ /summon Item ~ ~ ~ {Item:{id:spawn_egg,Damage:94,Count:1,tag:{display:{Name:"Open-Dimension"},HideFlags:127,ench:[{id:34,lvl:10}]}}}

/kill @e[​type=PrimedTnt,score_tnt_min=55]

/entitydata @e[​type=Squid,name=Open-Dimension] {NoAI:1,ActiveEffects:[{Id:14,Amplifier:10,Ambient:1,Duration:1000000}]}

/execute @e[​type=Squid,name=Open-Dimension] ~ ~ ~ /clear @a minecraft:spawn_egg 94 1 {display:{Name:"Open-Dimension"}}

/execute @e[​type=Squid,name=Open-Dimension,score_tnt_min=5,score_tnt=5] ~ ~ ~ /particle witchMagic ~ ~2 ~ 1.5 1.5 1.5 1 500

/execute @e[​type=Squid,name=Open-Dimension,score_tnt_min=5,score_tnt=5] ~ ~ ~ /clone -785.5 56.5 240.5 -781.5 60.5 244.5 ~-2 ~ ~-2 masked move

/tp @e[​name=Open-Dimension,type=Squid,score_tnt_min=7] -785.5 55.5 238.5